I've been doing this for years, too. The huge advantage is that you can update your MacBook to the latest version frequently, without having to deal with all th

I've been doing this for years, too. The huge advantage is that you can update your MacBook to the latest version frequently, without having to deal with all the pain points the GP describes. The same benefits accrue even more so for Windows; not because of hardware incompatibility (there are Windows drivers for all Macbook hardware) but because of system decrepitude. I have never had a physical machine that booted Windows for 7 years (or even 2 years) that didn't become hopelessly fucked up, whether due to installing some weird open source thing, malware, or Windows Update. But I have had the same 3 Windows VMs (XP, 7, and 8.1) running since the day I installed Windows on them, albeit with significant help from my frequent use of VMWare Fusion's snapshot feature. The only big drawback is graphics performance -- if you want to play games I don't think you would be happy with the solution, but it works great for virtually any other usage.