I've got the basic oval plus one straight track pack and one curved track pack, as well as the Contemporary resort. I'd love to get more, but I'm already out of floor space!
I've got the oval set up with the Contemporary on one side and SSE on the other. I hear that there's a polynesian resort, GF, and a Castle......can't wait to see those.
I'm blessed with a big house, so I can leave mine set up