With linux you have to do a choice, as in either Windows or Linux.
What?
You can install Linux alongside Windows, it takes at most 1 min or so to change from one to the other.
You can run one inside the other inside a VM (some do so, if the office doesn't allow them to install a new OS)
You can even install Ubuntu from inside Windows as a program, with Wubi (or any distro with Unetbootin).
Just because the common people don't know how easy it is doesn't mean it isn't. There is no choice to be made if you don't want to; just as with bitcoins. It's only the difficulty to start using something new and different, not pushed and supported by some huge corporation.
Don't think you get my point. Sure you can switch back and forth, but you really don't wanna do it.
I'we done multiple boot-settings in DOS for different uses(yeah, I'm that old), (not to mention OS/2) and the win/linux boot thingy, but it's basically a bit of a hassle. What you wanna do is install the OS and go. No need to remember different commands and styles of doing stuff. Hardware is cheap and strife is expensive.
BTW: I am doing linux at my small laptop, and will prob use linux if I build a mining rig. But for everyday use I want my familiar programs and the ability to dl and use almost all programs/games I fancy.
With BTC you dl a program and use it - nothing else is changed.