What I have learned from eBay is that there are a lot of reputable breeders who don't know any other way to sell. My first mistake was from eBay, but since I read this thread:
INCUBATING w/FRIENDS! come HATCH, LEARN, & Chat! w/hosts, Sally Sunshine & BantyChooks
things have gotten a lot better for me. I now really open a dialogue with sellers on eBay. A lot of them are just like us--that's just the method for selling that they understand. So, I find a listing I like, message back and forth with them a bit. If they seem annoyed by questions, I move on. If I get a sense that they really care, I hang in there. I think it really depends on what you're looking for, and I just don't deal in absolutes like "all of one thing is bad" or "all of another is good." I have gorgeous birds from a BYC member who shipped and I have beautiful eBay birds ;-)