I'm doing what was, just a few months ago... unthinkable. I'm going to buy a friend's used PC.
I'm getting it with the intention of running Linux on it, but the scary part is... I'm actively looking at ways that I could make it my... main computer, displacing my beloved iMac.
Why, do you ask? While I love Macs, more and more, I find myself driven toward the Old World hardware (Beige G3, Wallstreet Powerbook and before) and find it to be better than current offerings. The older machines were simply better made, better designed, and IMHO, just better computers than what Apple makes now.
For the era they existed in, the old school Macs were the pinnacle of desktop or portable computing. Today, a Mac is just a novelty. I have an iMac, yay. I can run Mac OS X, which is great, but I could run Linux on a PC and get the same stability, more speed, and at a lower cost. I wanted an iBook, but I'm not paying $1500 to get an extra 200MHz, a DVD drive, a tiny screen, a relatively small HD, and pissing 128MB of RAM.
Well, it's been an interesting year or two as a "die-hard" Mac fan, but those days are numbered. I'll just finally become an uber-geek who has no true preference for anything... just gimme a damn computer, as long as it don't run Windows!
I'm not leaving you fellow Macheads, by any means. I'm just no longer crusading for only the Mac. I'm now crusading for UNIX. I just happen to think that OS X is THE BEST UNIX on the planet.