it depends a lot on the size of the screen. Watching football on a 50 inch screen is way better in HD, but i have to admit the difference is not that great on a 19 inch screen. Regardless of the difference though i just don't really care that much. I'll get a HDTV when it is near the price of SD and my current TV goes bad.
currently playing: Skyward Sword, Mario Sunshine, Xenoblade Chronicles X