I'm not a breeder, but it could be that people are checking out several breeders at the same time. Just a thought. It is incredibly rude for them to not e-mail back though. Even a simple "thanks for the info, but we've decided we're not interested" would help a lot. I know when we were researching the breed of dog we were interested in, we talked to several breeders in the area to compare. Not prices, that wasn't the issue, but their set-up and their dogs. We were completely honest with them though and didn't ask about specific animals, just their operation as a whole and let them know a lot about us to see if they'd be interested in us too. The reason we did that was to weed out the shady breeders. Some seem good, but once you talk to them are really not..like this one lady who refused to let us see the dogs before she brought one out to our car for us to take home. We weren't even allowed to step on her property! I always thought it was standard practice to contact several breeders, but it may be different with chinchillas since there are much fewer chinchilla breeders around! Plus, buyers should be honest about it and have the courtesy to respond even if they aren't interested.
I've always found the deposit to be pretty standard too. Is it out of kindness that a lot of you don't do that? I don't mean to sound judgemental, I'm just curious. It's so frustrating that so many of you have had such bad experiences with buyers!