Ha ha. I take it you are running FreeBSD. Or maybe OpenVMS?
To answer your question: yes, I do have some sanity left, and in fact using Linux contributes to that. You know, it depends very much what you do. (Oh, I also have a Windows 7 installed as a game loader, it's very good at that!)
More on topic: I got rid of the Windows partition on my netbook and games like Avadon TBF that are fun to play but not too resource hungry are just perfect for it. And since this was advertised as 'the first chapter in a new, epic fantasy saga', I was looking forward to follow it over time.
In fact, if I had access to the source code I might just work towards a Linux port myself. Of course, if the engine would be open source many more hands could contribute to that.