Tossing in my two cents. I've tried out the Vive, it's a lot of fun for a while, even though most of the games on there are gimmicks. Gotta play with one for probably about 10-15 hours total over a few weeks, and there's definitely a lot of potential. Didn't get any motion sickness myself, nor did anyone else I was messing around on it with. We played about 15 different games, and some of those were collections of minigames. Most of the "full" games just felt like minigames, but we did try out GTA V and Minecraft on it. Would not recommend Minecraft VR, but GTA was fine enough to mess around with.
However, if you haven't tried it, don't hate on it. Yeah, the games are basically just tech demos right now. But it doesn't take long in the Vive to see the potential there, and if VR starts seeing some high quality AAA titles like Fallout, (whether or not Fallout 4 is a high quality Fallout game is another discussion) there's a chance that it can meet some of that potential. But even as is, it's fun as fuck to try out, and if you get the chance, do it. Moreover, even though the games are mostly gimmicks right now, the system itself is less gimmicky than it seems. Once you get in there with the headset on and your headphones in, and you're stumbling around a big room trying to figure out what you're doing, you'll have a blast, and you'll get surprisingly immersed in the experience. My one friend played around in that google painting thing for two hours straight, and when she stopped, she thought she had only been doing it for 20 minutes tops. So there's fun to be had even now.
Basically, don't knock it till you try it, there's potential there. But yeah, they're expensive as fuck and as it stands, not something I would spend money on myself. However, that doesn't mean that the system itself isn't fun.
EDIT: @umiman - I agree with you on the racing sims. Those are amazing. Also got to try out Elite for a bit, it was awesome. I feel like VR is perfect for space sims and racing sims.