For everyone only getting the Vive only for room scale, the Oculus is capable of room scale with 1 Camera. Once the touch controllers come out (which will come with a 2nd) it will be even better. Steam is also going to support chaperone for the rift (using positional boundaries). Check out this single camera test

If no-one buys the first gen, there wont be a 2nd gen in 2-3 years and developers wont want to develop for such a small audience and die out aswell.