:lol Zaptruder is great - say what you like about him, he can get a response.
The main quote I have to take issue with should easily identify which camp I am in. DVD only supporters are not luddites - they are not wanting HD formats to fail generally, they by and large just don't believe that they will gain traction with Joe Sixpack.
I have a 37 inch screen (HD as well mind), which is pretty sizable for the *average* uk punter. I have seen both Blu-Ray & HD-DVD on similar screens to mine in comparison with a run of the mill DVD player, and whilst the jump in quality is obvious to a moderately discerning eye, it's not as apparent to the unwashed masses.
Whilst I don't think that the HD formats will end up quite like laserdisc or SACD/DVD-A, I don't think they will get anywhere near DVD levels, unless the studios completely phase out DVD.
For your average Joe Sixpack, DVD is "Good Enough", and will be for at least the next 4-5 years. Maybe at that point HD formats will start taking over, but even then I'm doubtful.