My kids and I would have been pretty happy with just access to non-game elements. They must have already made loads of 3rd spaces and models - just being able to hang out and explore them would be brilliant.
Then if they started to layer gaming on top of that... my kids would be pestering me even more than they already are for a vr set-up.
Would it need to? It's a video game, right? Once you have the base elements, it could be pretty cheap.