That is a good question. I am probably going to be getting a PS VR this winter, unless NX has a launch title I can't live without, or itself is VR, I won't have the extra money for anything else. My plan for NX, even if it has a compelling launch title, is to wait until the following year when it has had time to grow. I got PS4 one year after it came out and it was alright, but I waited two whole years before I got a Wii U. Normally I wait a year to a year and a half. VR I am buying early because I have been dying to play VR since I was a kid and this time it looks like it will finally be worth it, even if just for a handful of games.
Also on the Wii U being a collectors item, that is another incentive to get some of the rare games now, which is the only reason I even bought Wonderful 101. For a while I was rooting for Wii U to Sega Saturn flop just so the after market prices would make me some money down the road. But then the games turned out to be pretty good so now I am happy it rose to the level it did.