I've had to dig through the registry to adjust settings to get things to work 'properly' in recent version of windows (visual studio - network BIOS command limit has been reached). I don't see that as a far cry from copying and pasting a few command lines in linux to get something configured or working. Please know that I am not a stranger to a bash shell, I usually have a few screens running irc and stuff...

That said, I use both. I have a win7 and an ubuntu box on my desk. Sure, I dropped Unity about 10 seconds after my first login (Unity is really just terrible, I truly don't understand how anyone ever thought it was a good idea.) Mainly, I use win7 as my main workstation (read: gaming) and my linux box for a web/media server and irc client (i really like byobu) as well as an alternate workstation when windows is rebooting/updating or whatever and I don't want to interrupt or interfere with its current activity - which is not often.

I would have to suggest it is more akin to suing the printer who made the gun catalog from which you ordered said firearm.