Does it not annoy you having to reboot all the time?
(a) Using a "dirty" computer as my daily driver. (I wouldn't sleep at night)
(b) Not being able to use proprietary programs in case of emergency.
I used to boot into Windows everyday when I played League of Legends, but now I only boot into it when I need MS Word (clients love Word for some reason) or something like that.
If your computer is powerful, running a "dirty" VM is another viable option.