Sigh, oh my god. I give up, not even going to bother replying to that.
How so?
Your point about requiring a HDTV was clearly a poor one. Many people use the same montior for pc and 360 gaming, just as many use an HDTV for pc gaming. The majority of 360 gamers still use a SD crt.
As for lowering settings in pc games to increase performance, in my experience pc games on medium to low tend to look like complete ass. I'll give one example of many - to play ET:QW at a decent framerate on my current rig I have to compromise on details to the extent that they arguably look worse than the original RTCW! The fact is most PC games are designed to look good at high settings and the quality plummets once you start taking a visual hit. Even Crysis running at medium settings on what, just over a year ago, was an uber rig, didn't impress me in the slightest. Infact, the only time pc games impress me more than the console offerings (and we're talking purely technical grunt here, in terms of quality, variety, innovation, creativity and aethetics, console games have been streets ahead for years now - imo, of course

) is when played with everything maxed and running at a constant and high frame rate.
This is what both amuses and frustrates me about pc gaming. People often tout the pcs technical superiority over consoles, how it visually outstrips them as new components are released, yet for this to be true you constantly need to upgrade (and at no small cost). If, like most pc gamers, you upgrade once every couple of years, this advantage simply doesn't exist. It could be argued that it's pc components that age ridiculously quickly while developers continue to squeeze more and more out of the various consoles and continue, even years after release, to produce staggeringly good looking games.
Long-term and completely jaded pc gamer signing out.