It's called freedom of choice. Unless you live in North Korea, you have the freedom to do whatever you want with your rMB. There are even people buying devices and smashing them to bits on youtube to get money for views.
I once installed Ubuntu Linux on a MacBook Air the very first day I bought it (and wiped OS X immediately). After a month of using it though, I stopped and re-installed OS X because it just became a huge PITA to deal with broken drivers and lack of support (at the time). But it was fun to tinker with it and figure things out (I used to build gentoo kernels back in the day), but when it came down to actually wanting to do something useful (like work), I had to give it up because it was too time consuming.
