Bettas are expensive fish, veiltails are the kind you can find in any lfs, petsmart, petco, etc.
veiltails are produce by the thousands in Thailand, Singapore and Vietnam
The halfmoon (HM), crowntail (CT) and double tail (DT) lines are expensive. It is almost impossible to find any of those cheaper than 20.00$ and I have seen prices going up till 325.00$!! which it is insane for a 2 years life span fish.
I have 10 females, HMs, CTs, PKs and 8 males HMs, SDs (super delta), PKs
and I got most of them from an IBC (International Betta Congress) auction and from a friend of mine who is a breeder. This summer I am spawning some of them
hope this help...