I Don't fail to understand anything, I'm a big user of BR but am aware of it's limitations and it's intended market. what you are saying though is partly right, start off basic and build up..... and in that starts the hole debate and the point of the original post which is who really cares about BR.
Those who want it wil buy it, those who don't won't. It's a personal choice But it's not the-be-all-and-end-all of the movie experience and by the time (when this slow down has abated, BR could well be a dead duck and the next thing already in it's infancy). Trials have already been completed on REDone and 500GB and 1TB optical disks and alot of sci-fi programs are already filming in it. For those individuals, it could be worth while taking the gamble and waiting. Or at least upgrading to BR when the price as well as demand have fallen through the floor.
Yes I can vouch for BR on a 720P tv, it's better than dvd but not by much. my first setup was a sony S2010 32' 720p tv with a sony BD500 player. Good picture but shockingly dull sound. That then went on to go through a 5.1 surround sound which offered nothing over and above what dvd's sounded like. So i basically had dvd sound with a better picture so the sound got upgraded to 7.1 which has a noticeable difference albeit with the pain of cables bloody everywhere. all before 1080p's where available. and I new to stay away from 1080i tv's as 720p is considered superior.
If you browse umpteen forums, they'll all say the same thing that they went out and bought better tv's at even more expense to get the 1080p quality because of BR, you'll also come across pointer's about the frequency and contrast ratio's . of the tv's and that many are still jerky in the picture flow. (which has become more topical since the introduction of LED tv's, prompting some buyers to go out and get yet another tv to try and catch that elusive best picture quality).
There will be a difference when watching BR vs DVD on a 60' screen. but regardless of the screen size, it's still only 1080 lines over the screen. Try watching that from two feet away and it too will look crap. as in the case of looking at a computer screen for close viewing of relatively small screens (assuming less than 30'). you'll need a resolution much higher than BR will deliver. Watch a BR on an apple 30" cinema display of 1600 lines and a BR movie will barely take up two third's of the screen. So BR has already been surpassed by what the ACD is capable of delivering and that's an old screen.
Even the new 27" iMac has left BR in it's dust. at 1440 lines vs BR 1080.
So perhaps it's better to leave apple to get on with developing HD tv content for the likes of itunes to suit those who want HD content on there computers and if you want yesterdays technology for your tv then go out and by Blu-Ray. It'll do....... until something else comes along.
Not helping is the fact that I only have one DVD.