I voted to put the money towards properly setting up what you have and what you seemingly plan to get in the future... that's ball pythons. A rack can be costly investment, but when done and set-up properly, will give you plenty of room to add more ball pythons.
I would say get corn snakes if you genuinely like them and genuinely want to work with them as a species. Don't just get them because you want to fill a couple of empty tanks... Do what I did, sell those empty tanks and use the money towards more ball pythons. That's how I'm getting my new het clown female.![]()