You can already build in VR. It’s in the 4.12 preview already.
Elite Dangerous works perfect with the Vive, haven’t had any problems with it at all. Will be much better if they actually implement some kind of control scheme that works with look direction and touch controllers but you wont get that with the Rift either.
None of the VR headsets really have any games that will keep you coming back to play over and over again specifically due to VR yet. Project Cars will be updated and probably already works ok with the Vive anyway, same as many of the other Oculus exclusives.