[nickjj]

It's not so much it being slow due to the VM, but the distro of Linux I use (xubuntu) just doesn't have a liquid smooth feel to it.

Windows and OSX both have an extra layer of superb smoothness added to them.

Real time audio processing and screencast recording doesn't lend itself too well to being ran in a VM. Neither do games.

Dual booting is also the worst experience ever, even with an SSD. You completely lose your focus and open work, it's the ultimate context switch.