Hell no, it isn't the *potential* factor - she has been there, done it and got the t-shirt. I would think that ideally they want a home like the one I have to offer, low mileage, nothing huge, etc. I wouldn't give £10k though, £5k yes at a push.
I have no doubts a YR will take her on to get themselves noticed though, and she will be jumped big until she decides she has had enough