I have an American green tree frog that I've kept for about 4 years now, and I can tell you that making a living vivarium is a lot of fun and a heck of a lot easier to maintain if you're open to going that route. They can also be very pretty, and don't have to be too expensive if you're smart about it. Basically all I have to worry about is feeding the frog and giving correct supplementation, and changing the water dish every now and then. If you don't have a misting system, you do have to hand mist for humidity, but that's no different than if it weren't a living vivarium.

We'll all be happy to help you if you have any questions.