I go becasue teh screen size is much larger than mine....and size does count.
If I feel the need for a "bigger screen experience" I just move my chair a foot or two closer to the TV.
Steve
P.S. It is actually different watching a moive (bluray only) much closer to the TV. I noticed things, mainly due to my focus point shifting I gather, that I didn't when watching from my regular viewing distance.
