It's ok, we really just don't want you getting stuck with snakes you can't move if you need to get rid of them for some reason. Too many people do that, and end up having to sell them later on and it can be nearly impossible unless they are sold for cheap and that just isn't fair to anyone.

It's getting really hard to sell bps, mostly because there are so many out there, so unless you have the newest most popular thing going they can cost you more than they are worth. And keep in mind that the bigger they get, the more expensive they get to feed and house.... especially if you get stuck with one that only eats live prey or something.