i don't care about tail type when choosing my next betta. last two i bought, were veils. Scout, wouldn't have been bought if i hadn't gotten him. who wants an ugly, grey, tiny thing, when you can have a bright red or blue or yellow? there were tons of beauties, but i picked the small grey guy. he needed me.
and, Sniper is a veil. beautiful boy. i love all tail types, and would pick whoever i bonded with. it's usually the guy or gal who wouldn't be bought otherwise.