they go for about 400 pr, 150 unsexed. Prices vary, as Haroldo said, I have a few eggs in the incubator from my trio, but I doubt i'll let any go. There are enough out there, but most breeders dont want to let them go.
Think about Phelsuma before buying any, I suggest starting with a larger, hardier species before getting too into the genus.
Phelsuma klemmeri are also very small geckos.
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2.3 Phelsuma klemmeri
2.3 Pachydactylus(Palmatogecko) rangei
2.6.7 Rhacodactylus ciliatus
along with various other species.

looking into Sceloporus orcutti and Holaspis guentheri