We don't "tough it out", we have a control setup that's quite great. Sure, if you're not used to it then it might take a while, but it is not inferior to a controler.
Having said that, you can still use a controler with a PC for many games. Naturally, not for the RTS games and such, but for most multiplatform releases there is gamepad support.
As for why I love PC gaming, mostly because it's cheaper. The games are cheaper and I can't justify the extra cost of a console in my budget at the moment, not to mention a new TV. Also, the superior controls, at least as far as my favourite genres go (RTS, TBS, RPG).