Comment Hardware support (Score 2) 1880
A few months ago I was pretty excited to have been given a top-of-the-line laptop at work. I quickly ran into problems with graphics card support. My previous 4-year-old linux laptop ran Compiz flawlessly. My new laptop was running like crap. I finally realized it was because of the Nvidia Optimus technology, which is supposed to save power by dynamically switching between discrete and integrated graphics chips. A lot of hacking away later, I finally got it working, although it still doesn't seem as snappy as my old laptop.
I also recently built a new Linux desktop with the intention of playing games on Steam through Wine. Again I hit problems with the graphics card support and finally gave up and installed Windows 8 dev preview.
In the future I'll do more research before buying hardware.