Same. I haven't run windows in 7 years, but Visual Studio is still one of the best IDEs I've ever used. I'd gladly pay for it if it was released on OS X/Linux, although that's somewhat contingent on the plugins that I want running on it too.
The other thing is that I want to use OS X for everything else -- I much prefer using it for development above Windows, so while you may be correct in terms of sheer dollar value comparison, in terms of opportunity and switching costs it's quite higher than that for me personally.