Guitar Hero World Tour PC?
Rock Band PC?
Banjo Kazooie PC?
Halo 3 PC (as of now, with XBOX Live support)?
Face it, there are plenty of 360 games that aren't for PC, aren't going to be for PC for a long time, and probably will never be for PC. Also, the PC versions tend to all be distorted and burdened by heavy restrictive DRM and serial codes, none of which are needed on console. PC gaming is great, but it isn't a reason not to have a console as well. The 360 controller works on PC (so do plenty of other joysticks, the PS3 game pad, the Wiimote+accessories) but that doesn't mean anything, if anything it's better, the 360 controller fits my hands perfectly and has well placed controls, great for 360 and PC gaming. None of the games mentioned as PS3 exclusive seem even slightly interesting to me and the controller (and all previous PS controllers) have a horrible fit to my hand (reaching thumbs to the sticks in the middle for FPS is a pain, the Xbox 360 layout with the left stick on top feels better in my opinion. Blu Ray support on PS3 - meh. There's no need, plenty of immersive, huge games with seemingly endless worlds have been easily fit on a single layer DVD. If you need 10000 hours of cutscenes or 1080p full motion live video, go ahead, use BluRay, but I want games, not movies. If I wanted movies I'd be at a theater or I'd turn on my PC. Besides, I can stream videos from my PC to my 360 if absolutely necessary, and there are much better options to acquire movies on PC than on PS3 (not just downloading, but ripping from DVD, recording from TV tuner, copying from YouTube, etc and streaming to 360).
As for Netflix, I don't care enough about movies to bother with any paid services. In the very rare occasion I want to watch a movie, I usually already have the DVD, and if not, I probably can get it off the dorm LAN, and if not that, I either rent it or download it. I watch maybe one movie every two months, so it isn't even important that a system play them to me.
What I like about the 360 is that it has good games, a good interface, a good online service, and full integration of all of its features. 20GB may be kinda small, but I can always upgrade later to a bigger drive (without having to disassemble the whole entire thing and void warranty just to swap hard drives, mind you). I also can save stuff to memory cards.
There are some things that are meant for PC's (Oblivion, for example, is a great PC game, same with Orange Box and most other FPS'es). Halo 3 is one of the rare examples of a quality console FPS. It is a game that is best with multiple people, something you can't do well on most PC games (single-PC multiplayer? unheard of!). Same goes with Rock Band/Guitar Hero, these games are meant to be played with friends, and PC's have never been good at multiplayer (not counting LAN or online multiplayer, PC's are great at that).
Plus I got my 360 for free (broken, fixed it), but if it should permanently die, I wouldn't think twice about purchasing a replacement (especially since the new ones are a lot better in terms of stability and quality, the red ring of death is rare on new systems).