I actually think the Rift is going to do pretty well; there've been plenty of products trying to hype virtual reality for a long time now, but generally as soon as people tried them it was very much a "wow, this is pretty crap" experience. The same can't be said of the Rift, which has been improving by bounds each year and is leaving people blown away each time. I doubt that it'll go hugely mainstream, but I don't think it's going to be some piece of crap that bombs like people think, based on the silly anecdote that "well VR has usually failed before, so this one will". That looks at exactly 0% of the whole picture, of why VR failed.
So yeah, I'll be getting a Rift once the consumer version comes out and I have money, definitely.