Imbrium
Jennifer
I find this thread very interesting... I've been wondering many of the same things as a starting glider breeder. A LOT of glider breeders have contracts, some very strict, and I question how they're actually able to enforce anything. from a personal standpoint, if I use any sort of contract, I'm definitely going to pick my battles and only include stuff that's truly important enough to me to go through the hassle of enforcing. luckily, with gliders, it's very common practice for any male sold as "pet only" to be neutered prior to sale (they should be sold no younger than 8 weeks of age and most vets will neuter at 8-12 weeks). the sucky thing is that you can't spay females unless it's absolutely medically necessary, which makes selling "pet only" females a bit risky. the good thing is that if someone breaks a "pet only" contract and breeds their female, gliders' genetics are tracked in a database and the breeding community is fairly tight-knit so it wouldn't be terribly hard to make sure the person got a bad reputation and was cut off from using the best selling tactics - essentially, they can get black-balled to the point of having to sell on craigslist and such 
I definitely plan to only sell male colored gliders (white faced blondes, leucistics and if I get lucky and Tabitha's 50% chance to be a carrier proves out, platinums) as "pet only" - if I sell a female along with them to complete a pair, it'll be standard gray (albeit still with very desirable breeding genetics, since they'll be carriers for the leucistic gene, but much less valuable from a breeding standpoint than the neutered male). it's the best way for me to sell high-end gliders at a steep discount to people who don't intend to breed them. I'd still love a way to have an enforceable contract, though, since if I sell, for example, a leucistic glider and a standard gray (leu het) glider as a "pet only" pair, I'll be selling nearly $1000 worth of breeding gliders for more like $500-550 (technically, $400-450, since about $100 of the purchase price would be spent on neutering the male).
with rabbits, it seems like it would be a lot tougher to make sure they were spayed/neutered since it's not common practice for the cost of being fixed to be included in the purchase price and that's the surest way to make sure it gets done... on the plus side, "right of first refusal" is a lot easier with a rabbit because people don't care about getting their $25 or whatever back the way they care about trying to get some of the purchase price back when they spend hundreds on the pets.
I definitely plan to only sell male colored gliders (white faced blondes, leucistics and if I get lucky and Tabitha's 50% chance to be a carrier proves out, platinums) as "pet only" - if I sell a female along with them to complete a pair, it'll be standard gray (albeit still with very desirable breeding genetics, since they'll be carriers for the leucistic gene, but much less valuable from a breeding standpoint than the neutered male). it's the best way for me to sell high-end gliders at a steep discount to people who don't intend to breed them. I'd still love a way to have an enforceable contract, though, since if I sell, for example, a leucistic glider and a standard gray (leu het) glider as a "pet only" pair, I'll be selling nearly $1000 worth of breeding gliders for more like $500-550 (technically, $400-450, since about $100 of the purchase price would be spent on neutering the male).
with rabbits, it seems like it would be a lot tougher to make sure they were spayed/neutered since it's not common practice for the cost of being fixed to be included in the purchase price and that's the surest way to make sure it gets done... on the plus side, "right of first refusal" is a lot easier with a rabbit because people don't care about getting their $25 or whatever back the way they care about trying to get some of the purchase price back when they spend hundreds on the pets.
