For years I had 2 TV's set up for gaming: a 25 inch CRT SDTV in the game room and a 52 inch projection HDTV in the living room. The HDTV was bought in '02 when HDTV was just rearing its' head so it only does 480p/1080i through component (no HDMI) and being the room it's located in I kept only my Wii and 360 hooked up to it. Through the magic of daisy chained switchers and surge protectors I managed to hook up every other system I owned to the CRT (which was about 9 or 10).
I moved a few years ago and came across a cheap 22 inch LCD and set it up right next to the ol' CRT. I've got 4 or 5 consoles hooked up to it but still have the PS2 hooked to the CRT via composite. Am I better off leaving that as is, or is it worth the change to component cables on the HDTV? Hardly any games at all take advantage of it, and those I've seen that do all require some unique hidden code on bootup to run in 480p. I mostly play fighters and other 2d centric stuff and very rarely play some PS2 exclusive 3d games.