Ok. So it's going to be more than $350. Personally, I found it a pretty low price to start with. Now the question is how much more? $400? $500? $750? Everything up to $500 would be ok, I guess. If you are willing to spend $350, then $500 isn't a real dealbreaker. Anything more than that and it's a different ball game.
Of course, there is always the HTC Vive ( Playstation VR as well, but I'm not a console person.) so we can always see what those will cost.
As for games, enough people have said that sims will be very nice with this ( Space, car, plane,...) it's a best fit were games are concerned. Some immersive horror games à la Alien: Isolation will work as well. But nothing with harsh, sudden movement like the FPSes we know today. I'm sure they'll come up with some variation of it though... For me, immersive landscapes would be nice as well. Something like the aquarium simulators, but you're sitting right in them. Oceans, lakes, great Barrier Reef, but also a pleasing meadow. You're sitting by the tree line, there are rabbits playing around your feet, squirels coming up to you, some deer pass a couple of dozen feet from where you are, a bear lumbers towards you, has a sniff and crashes in the underbrush behind you etc. Old peoples homes would be ideal for those experiences. Same with guided tours of famous places. More Grand Canyon than the Louvre because detail will be less then current crop of games at the start. And that is just the first version. Once we get a kinect-like camera on it so our hands/arms/bodies will be imported in the game at the same time enabling a form of AR, once we go wireless, higher resolution, eye-tracking for better detail i'm pretty confident ( well, ok, I hope....) that in 5 years we won't be able to imagine entertainment/ infotainment/edutainment without it.