Heres my piebald male. I bought him from Pro Exotics, hes a 2010 hatch. paid $800 for that beauty.
Prices on piebalds have decreased quite a bit in the last couple years. If you dont mind a low to med white pied than you could probably get a male hatchling today around $600. females being $800 to $1,200.
Check out faunaclassifieds.com and see what you can find.

DSC00370 by zombiecupcake155, on Flickr