There'll be a lot of negative feedback from OSX and Linux developers.

No surprises here for me though. After struggling to get DK2 and Unreal Engine on my Macbook Air running smoothly, I bit the bullet and bought a Windows gaming box just for the Rift.

Considering that I bought my current Macbook for iOS development in the process replacing my Samsung laptop running Ubuntu, this makes sense - platforms are just tools to get things done.

If budget does not allow all 3 of them, then choose whatever system makes most business sense for you. This should not be an emotional decision.