Yep...I've already seen males at $650 and they have over 20 available. People have been cranking those out in numbers for years. I remember one guy literally had 100 available (with pics too) a couple years ago.
If you buy pieds looking to just make more pieds, it might not be such a great investment....but if you buy a pied and spider (or whatever) het pied, you could do some pretty neat things.
It's all about the combo...single mutations get produced almost by accident now. lol