Any of the aforementioned treefrogs run between $25 and $40 dollars. I say go with the treefrog. Crickets are an easy food source to work with and are far less labor intensive than fruit flies. Dartfrogs can usually start at around $30 and work their way up from there. All in all, go with a tree frog. Darts are nice but can be consume a lot of time and present some challenges for new keepers.

Alex