I think I’m one of the few people that just aren’t impressed by HDTV. We were at someone’s house watching football on HDTV ove the weekend, and there honestly was not an appreciable difference between the HDTV and the 10 year old 27″ standard definition at home (because of this article, I was paying extra attention).
I’m not very graphically oriented, though, so my experience may not be typical. The abstract things (the actual plot of a movie, as opposed to what’s physically on the screen) tends to appeal to me more.