Some of the dog prices do seem ridiculous! But I'd have no objection to paying say £100 for a neutered/vaccinated rabbit that had grown up in luxury surroundings and had excellent genetics that made it less predisposed to health problems. Maybe £50 if I had to do the vet stuff myself.
Considering the gambol you take with just teeth problems which could be almost wiped out with proper breeding it would save you in the long run!
I would do it the way the lady I got my frenchies from does. With passion, love and care. Her buns are her world and I would be the same