I'm not sure why people seem to think that playing games on PC requires any special knowledge. Very few games require you to actually build a powerful PC, and even then there's plenty of retailers that provide parts lists and assembling services. Sure, it'll cost more than a console, but the games cost a lot less. Installing games is also easy as heck, thanks to ubiquitous online game retailers. Occasionally, you might have problems with playing or installation, but it's usually fixed by googling it for help. The only gaming that has required special knowledge has been playing emulators, or getting pirated games to run.
Secondly, I prefer games to be something I can share with people around me (Flatmates, partners, family, friends, parties) and you can't really do that with PC games. It's why the Gamecube was my favourite of the last-gen consoles - you could stick four controllers in and have a great time with Mario Kart, Smash Bros, FPSs, etc.
I suppose this is where the difference lies. Whenever I play with friends, it's always boring run'n'guns like CoD or Halo, since no one owns the Nintendo consoles. Playing almost exclusively on PC nowadays has exposed me to a huge social atmosphere, and given me friends from a huge diversity of gaming communities.
I also miss those games immensely. I grew up on Smash Bros 64 and the Mario Karts. Good times.