You are without a doubt the misinformed consumer and you are wrong on a majority of points. I've been working in post-prodcution for 12 years.
1. 1080i provides nearly double the spatial quality of 720p. Spatial quality (space) is the resolution of a single frame. The fact that it is interlaced means nothing in this regard. Because it's interlaced, the temporal quality (time) is what suffers. 1080i is only half the temporal quality of what 720p and 1080p is capable of. So 1080i cannot display anything higher that 30fps, while 720p and 1080p sets can display 60fps.
2. The advantages in temporal quality you get from a 720p signal is totally non-existent if the source material was recorded at only 30fps or less. So for exampe, every single motion picture shot on 24fps film will not see the benefits that 720p sets can achieve. Thus, 1080i or 1080p is vastly superior for watching movies because you get the full frame rate anyways, and you get a much higher resolution. 720p's advantage only exists if the source material is higher than 30fps (games, or live sporting events shot on 720p equipment).
3. A 1080p television set gives you the best of both worlds. You can view upscaled 720p matieral at a full 60fps, (something you cannot do on a 1080i CRT set). And you can watch 1080i material in it's full resolution (something you cannot do on a 720p DLP/LCD/Plasma set).
4. 1080p @ 24fps (technically called 1080Psf) has always been around and almost every single professional HD device supports it. 1080p @ 60fps is what these new sets use.
5. The new 1080p sets will accept a 1080p signal when they become available.
6. While there may not be devices that ouptut 1080p@60fps at this very second, next year there will be millions. HD-DVD and BluRay players will be capable of 1080p. Sattellite and cable providers may support it as well. Sony's PS3 will support it, and if they wanted to, MS could have supported it with the Xbox 360.
Again, having 60fps for 1080 resolution is pointless for movies. But for gaming there is a huge advantage. So if the guy at Best Buy told you that 1080p sets are just some pointless gimmick simply because all digital displays are progressive scan, I would suggest getting your information from a better source.
This post has been edited by Lifter: Nov 26 2005, 02:46 AM