I've gotten one betta from a Thailand breeder through AquaBid. He was really expensive because of, as already mentioned, the transhipper (ie, middleman) fees. Now, I'm in the US, so maybe the timing and stuff is different, but it's a day from Thailand to the transhipper here, than she takes care of the fish (water changes in a bowl etc) until she ships him out, usually a day or so later, and it's a day from her to me. He got here perfectly fine. A bit pale (they almost always lose a bit of color in shipping because of stress - in a few days they color right back up), but otherwise in great shape. If you get a fish shipped (from ANYwhere), though, do make sure you open the package in a DIM room and leave it that way for a while. They've been in blackness for at least 24 hours - their eyes need time to adjust to the light. Anyhow, he was just fine. Ate the same night, even.
(Ironically, one of my bettas directly from a breeder in my same country didn't handle the stress well and chewed up a bunch of his fins during shipping. Apparently fairly common for them to do this...)