about $400 - 500ea...., any of the larger geckos that don't reproduce like mice will be dearer... amyae average around 4-6 eggs a season where as Oedura's produce 10 - 14 eggs a season, and amyae are in much higher demand as they are pretty cool looking critters...
Wait a couple more years and they'll come down a bit more in price, their on license in Vic now so there should be more breeding being done in the next few years.