To answer the actual topic question, I personally don't own a PS3 or 360 yet, but of the 4 people I know who own 360s, only 1 of them has an HDTV.

It doesn't look that bad on a good SDTV, but I do plan on upgrading in the near future.

I have X360 but i play it on 22" standard tv. I have planned to buy HDTV next summer.

If you do get a HDTV know that HDMI cable looks better (cleaner) than even component. Just make sure you buy your HDMI cable online as you pay too much for it in stores.

It all depends on what you are watching your 360 on...if you are playing a game on a 32" SDTV, then you will seriously notice the difference from playing the same game on a 32" HDTV.

There is also no need to go the full upgrade.  You can start off small and then upgrade to a bigger full HD later and move the smaller screen to another room.

A 32" LCD is certainly good enough to make the games on a 360 or PS3 look much better.  And you can pick up a 32" LCD for around $500 in the US and around £350 in the UK.

HDTV not being worth the current cost of entry is all relative to what you believe is a decent cost.  When we bought our first TV for our house some 7 years ago, we paid £700 to get a 28" prologic widescreen Philips SDTV.  We managed to pick up our 1080p Sony 40" Bravia for £500 ony 4 months ago and it's certainly worth the money 

360 no HDTV.

 I know it should be played High Def but I really dont see the reason to upgrade as yet.

It would only be for games I simply dont watch movies.

 My SD TV is only 3 years old and I will upgrade when it goes to the great CRT in the sky.

I bought my 360 and was still using a 32" standard def Sharp. I bought VGA cables to play on my 22inch LG computer monitor and was amazed at just the difference in that.

About a month later I bought a 42" 1080p AQUOS. Ever since I don't think I could go back to watching tv or playing games on an SDTV.

I bought my HD-TV when the PS3 came out and made sure to buy a 1080p so that it would be perfect for it ( I got one of the first 42inch 1080p Sony and got a sweet deal for it at the time).

And only bought the PS3 one year after the TV( TV in November 2006, PS3 in November 2007) ( I was waiting for a bigger game catalog to be out).

Funny thing is I don't have HD-TV cable ( just regular cable subscription) so for one year I had a HD-TV and wasn't really taking any advantage of it.

I however bought my first blue-ray movie 3 weeks ago ( Kingdom of Heaven Director's cut) and my wife who knows next to nothing about HD-TV was really impressed by the picture quality compared to standard DVDs.

if you dont have 1080p you dont have a HDtv.

Um, okay. I could go into a rant about current games not running in anything over 720p natively or how a properly deinterlaced 1080i image is just as good as 1080p for movies/television, but I have the feeling I would be wasting my breath.

The consumer confusion behind 1080p and HDTVs in general is amazing.