It seems that most have good luck; to me mail-ordering a live animal is just... weird. I can't explain why, since the LFS had their stock shipped to them AFAIK. But, logic or no logic, it seems weird to me. Maybe it's just that I can't imagine paying for an animal I haven't seen. Several times I've gone to a store to buy a certain fish, and there are always some pretty, healthy specimens... and very often there are some that look rough. Maybe tattered fins, bad color, too large or too small... since I wouldn't say "just pick me one out" in person, I couldn't make myself do the same thing through the mail.