The average price for petco is 50 bucks no matter the size,, for care its pretty simple,, for hatchlings just a medium kritter keeper is fine for the cage.The minimum for an adult is a 10 gallon, you can put hatchlings in this too if you want. For inside the cage just make sure you ad like a branch or something and a fake plants or vines(i just get silk vines at walmart like 3 bucks for a 6-foot strand) For feeding its best to feed The Crested Gecko Diet wich they should have at petco, with this you dont need to feed insects but i do every now and then because they like them. Also make sure you spray down the cage 1-2 times a day because they need the extra humidity. Post pics if you do end up getting some i would love to see!!