I agree with Nathan. Good idea but there is a flip side to this. Since we have been breeding for a while now, we have changed our contracts to read "all sales are final". Not because we breed inferior stock, not at all. It is self-protection.
We have "bought back" before. We had sold perfectly healthy animals with great pedigrees and great temperaments. We ended up getting back half starved animals, no vet care since they left us, hooves grown out, no handling, horrible ground manners, bred to whatever came along.....and to boot these people now wanted twice what they paid to "rescue" their animals. We did buy back for a while for the sake of the animals but not anymore. And to top it off, once we got the animals back in shape, these same pervious owners now wanted the animals back "because they were attached!!" Give me a break. Over my dead body will these horses go back in those situations.
We tried every time to place our animals in good homes. Some of these people got in over their heads, some were just stupid. In a time where people move out of their homes and leave their animals behind (and I am talking dogs and cats here), you can't afford to "take back" every animal you breed.
It is not the responsibility of the breeder to have to rescue the animals. It is the owner's responsibility to manage the animal they buy. I don't own more animals than I can care for properly. I don't breed more animals than I can care for. Most years we only breed to replace the horses we sell. This year we have sold only a couple horses because I just can't face placing my horses in a home that might be unstable and in this economy "unstable" is a major keyword. I would rather hold on to them a bit longer and wait for the perfect home to come along. Yes, I would like to sell, but not to just anyone.
I know this is not the popular view and probably not the "polictically correct view" but I think more responsibility lies with the buyer than ever before. I am not Walmart or Rent a Center. I can't give a full refund just because the buyer has a run of bad luck or poor planning.
If you only have 1-2 sales a year- perhaps it will work for you. I sincerely hope you get back the animal you bred and sold and not the problems that other people just don't want to have to deal with because of their own lack of responsibility.