Hilariously enough, the VMs that accelerate 3D usually accelerate D3D but not OGL for Windows. Why are you running the virtualized setup in the first place?
For the ease of use, so that I can run Windows and Linux at the same time, and that I don't have to restart my computer. I can just turn on the VM instantly AND I can chat to some friends since I play games on Windows on Steam. Going to OGL, I'm forced to develop on Windows (which I loathe doing) or I do the dual boot, have to restart my computer and lose the ability to talk to friends on Steam at the same time. (I usually leave the VM in the background too so I can quickly do programming or play games) Or I could buy and build my own computer again (or just one from a shop) and install it on there, but again, not willing to dish out some cash just for this.
However, once Steam on Linux comes out I'd be happy to switch completely from Windows to Linux. But in the mean time, I have to stay with Windows.