I saw baby Nic's for $25 at the show in NY. Saw some regular BP's go for as little as $10. I picked up a normal BCI for 60 and they had them as low as 30ish I think. You'll find A LOT of good deals, just be sure to carefully examine the snake and get the breeders contact info.
Also, I could not tell you what a dwarf retic goes for because NY cannot legally sell them I guess. But my friend has one. Fairly aggressive, he said. He was able to calm it down though. The first day it got to the point where it was tame to one hand, but would strike at the other hand if he reached near it. It still tags him every now and then though.