The leopard gecko, a native species to Southern India, requires proper care, handling, and sometimes a license is necessary depending on where you live. In the United States, you need a FDP Act 1135 UR Handling License to care for one, however in Brazil anyone may take care of one. Each gecko will run you about $275. The food and cage are inexpensive, although proper lighting to keep him warm may be necessary. Treat it somewhat like a lizard.
For 1 Leopard Gecko it's $25.99 I think and a cage and accessories including food would be probably about $50 maybe with some few decorations being $15. They don't grow very big and do not need a huge cage so that's a pro. So about $115 for everything I would say.