I think to actual get good value out of it you have to be a "creative". That is you need to be interested in building cool stuff from it using the programmable options in the toy con garage or whatever its called. I saw cool stuff online being built within a couple days after it came out. But yeah I have no doubt if you just build they cardboard and then play the games I'm sure that will go old quickly.
Right now it would seem its for creative people (kids or adults) who will build new things with it. Though they should release more mini-games or whatever in the software so it could also be a good kids toy for those who aren't creative enough to build cool stuff with it.