Hey guys, it's very odd to me. I've been 100% on Ubuntu (12.10 x64) for 2 months straight and never looked back to Windows 7. Well, except to help my Mom on her computer.
Everything just... works. While I had a few problems along the way, I broke through them. Help is there, all you need to do is look for it.
Oddly enough, my Dad was intrigued by it as well. I put it on his laptop a few months ago, and he loves it. He wants it on his desktop, too.
Yeah, you get the people who say, "Why switch?", "Linux isn't compatible", "It looks ugly". With a little know how, you can do anything in Linux, in some cases more, than you can do in Windows.
Linux, as a whole, has grown 10 folds since I started venturing it in ~2005. More support, drivers, open source software, and more power to the kernel.
I have to say, I learned more in the last 2 months than I learned the last ~7 years. This proves that even the noobish, with help, can overcome anything.
Anyone who is iffy about using Linux, and wants the full experience, not just in a VM, put it on a flash drive. You can install it straight off there, and not have to wait for the Live-CD to boot up. That's how I started.
The problem with preaching Linux is that, for--what, 15+ years?--a long ass time, it's been the exact same mantra. For 15+ years, Linux, "with some work", could "do anything Windows can, and more". And for 15+ years, the claim has meant nothing to 99% of the ears its fallen on.
The same story that failed a thousand times isn't going to suddenly work. There's a reason why Linux is only interesting when people don't know it's there (Android).
It's cool that you're having a good time, but, you know, FYI, your attitude will never go further than preaching to the choir.