they are more expensive becasue they are so fragile. the more expensive ones are from a captive bred line with a lineage. the less expensive ones are either farm bred or wild caught. like i said before this species is fragile and wild caughts should be avioded unless you have extensive experience with this species.

500-600 isn't that expensive in terms of GTP either. i've seen neonates priced in the thousands. these are from blue or melanistic lines and the adults are stunning. prices are coming down even from breeders in the hobby. you just have to know where to look. currently, some breeders are selling captive bred and born neos for 350 and that would be the way to go. no guess work in that one.