We pay 30 for hard feed, on offer are basic pellets, an oat free mix and oats. Anything else we need to provide ourselves. Mine only needs token feed at the moment so I provide my own oats ( he gets a handful when the others are fed) and I feed him once a day with a small amount of kwikbeet, prohoof, salt and linseed. without the prohoof it does not cost me 30 a month so I definately save by providing my own.
We have 80 horses on the yard, can imagine you would need an indoor school size feedroom if the YO needed to stock different feed for everyone