Think you need to specify what sort of training you are talking about. I would pay one price for puppy socialisation, working through the KC Good Citizen range, another for specialist gundog/working trials/agility training and yet another price for beh
behavioural remodification. Also, group or one on one?
What the content is/duration is depends on the objectives and the dog.
Sorry, prob not the answer you wanted.
behaviour
There are a max of five in a class, a one to one session is £10 per hour. 
Puppy socialisation course is £5 a week for six weeks, that's one hour's session a week plus a 20ft long line to keep and lots of printed literature. They cover watch me, down, sit, stay, come, leave it and polite doggy greetings.
Agility is £5 per hour, I am allowed to take two dogs for my fiver.
They do workshops every few months which are two hour sessions each covering a different problem, Dax has done the recall one and Ricoh the leash reactivity one, there's also loose lead walking etc., it's £35 for the two hours to again include a long line (discounted if you already have one).
One to one home callouts for specific behavioural problems are £40 per hour plus mileage if outside a certain radius. Dog walking £10 an hour, pet sitting £15 per day or £100 per week.
No joining fee unless you count a deposit for the workshops.
some people come with a simple problem, a trainer will show them what to do, and we never see them again (one trainer has admitted they are awful at attracting new members - look, there, I fixed it for you - oh, wait, come baaaack!) into one class. 
It's one hundred and summit or other for the year, which includes membership of a parent body and can be paid quarterly.
One weekend morning and one midweek evening, the weekends we can start as early as nine and not leave til three sometimes (that includes a lot of tea and nattering).
Ours are aimed at a certain discipline/breed/type specific with the aim of achieving qualifications for the dog, but people often come for basic obedience and socialisation and they get hooked
We allow two free visits before you are asked to join.
We do obedience, agility, tracking and protection but TBH only a handful of our members actually compete to high level.
Access to a number of trainers, who have trained dogs professionally for decades and/or who have competed to a high level, they are not paid, they just pay a nominal club fee, and I think that *really* shows in the training, there is no hard sell, they all have their own dogs too.
They'll call a spade a spade - if they don't think you or the dog has the aptitude, they will tell you and direct you towards a different discipline or different style of training.
'You probably won't be able to do X, but have a go at Y, it might be more suited'.
Access to fenced field with all associated equipment which we can use outside training hours if we phone in advance.
I've been a member for about three years and initially only went because I was at my wit's end with a dog-aggressive dog, he has since got his companion dog and tracking titles and is a much nicer dog to be around.
I've now got hooked, researched a bit and got myself another dog which I hope to take a little further.
What people might not like is that it is not regimented, there are no drills, no one shouting commands, we do that only every so often for a bit of fun.
Every dog is at a different level, so you take your dog on the field, if you need help, shout, if you want something, ask. Not forcing dogs and handlers of different talents/intelligence levels
We do group work where it is appropriate but it is not often needed TBH.
more larger drinking and nattering, but intense individual training when the nattering stopped.
) so everyone was scared of him as she kept saying how she'd use another dog as the example. Covered going through doors nicely, recall on a longline, physically checking dog, bandaging with vetwrap, a party trick (which I refused to do), leave command, being approached by strangers, lie, sit, stay.There was a behaviourist there, but she rarely helped. Granddaughter of trainer talked constantly in background do hard to hear trainer. I did it for socialization more than training. It annoyed me that our dogs all knew the basics but she didn't adapt het sessions to reflect that. Fee was payable up front or I would have gone elsewhere.
And all the obedience work he'd done really put a great foundation on it.
The bloke who does the agility is fantastic, really lovely guy but I am sometimes left puzzled by his courses, we had one a while back which needed something like four changes of side and a really horrid weave entry, I'd rather concentrate on getting clears on full elementary style courses than breaking harder courses down into tiny chunks and just repeating short bits all the time.
Have spoken to you about this already
If a dog comes out of the car with eyes aflame and fangs bared and making a noise like Nick the Devil, someone will shrug and say, what's all that racket? And try and get it sorted out rather than freaking out and asking the tearful, at-their-wits-end owner to leave.
We've had some proper handbags at 50 paces moments but no dog or handler has ever received a puncture wound, touch wood. A lot of the time it is just noise and posturing. Which a good trainer might know
) and loos. Would love somewhere with a roof, all my clothes are brown 
It's held at an RSPCA centre with which the trainer has a mutual arrangement so a lot of the clients are people who've had rescue dogs from there.
. Galaxy I see what you mean re your dog and other potentially aggressive/mouthy/hyper/distractive dogs. Provisions need to be made one on one or with the trainer and the trainers dog/s/ or other dogs (but not a "please leave")
I am about 95% happy with the class - the one thing it's missing is any sort of pushing, competitive element but as it was advertised as 'fun, have-a-go agility' I shouldn't really complain.
I got a bit frustrated with the six week course I did with R because he was progressing much faster than the other two adult dogs in the group and as a result the others got a lot more time spent on them while we did heelwork in the background, with hindsight that was still pretty useful for him, at least he was doing it around other dogs without shrieking.
The general air of calm, positive, reward-based training is great, the main trainer despite being a collie person is also fairly husky savvy and has more patience with their ways than I do. It was essential that the training areas were totally fenced in and secure, it was the only place locally that could guarantee that, and she understood why I asked for confirmation of this about three times before I signed up.