To address a few points, again.
1) It's not 'OR' it's 'AND'
We're talking about Apple officially supporting Blu-ray movie playback in OS X. Those of us who want that are not in any way saying anyone else should be stopped or even discouraged from buying whatever 'HD' scraps iTunes wants to sell you now or in the future. If we are stuck in the past and don't get how wonderful a smaller selection of more restricted more compressed, poorer value, lower resolution files are better because you don't have to collect the post first, why not let us suffer our choice? A simple option in system preferences could turn Blu-ray compatibility on or off (maybe with a reboot even). Default it to off. You need never have anything to do with it. So why go 'yay Steve, annoying your customers is great, I have fast internet and a low quality threshold for video - to hell with anyone else even if it doesn't impact me at all!'. At least Jobs has the excuse of corporate strategy! The average consumer wanting other average consumers to not have the choice of Blu-ray support is kind of... sadistic and weird frankly.
2) It's The Internet Speeds (And Data Caps), Stupid
When talking about the internet speeds that are absolutely vital if downloads (or even worse, pure streaming) is to eventually replace physical media for the vast majority of consumers, even those in the anti-BD camp are saying things like 'soon', 'the future' and 'in a few years'. How often do you buy a computer? My main mac is still a 6-year old G5 PowerMac, and I also have a 3-year old MacBook. I would guess those sort of ages are not uncommon for mac users before replacing their machines.
I have very little doubt that I would still be able to buy new releases of Blu-ray discs in 3, and probably 6 years time. So why can't I buy a Mac that natively supports their playback?
And guess what? If downloads get a sudden boost because every nation in the movie-buying world makes a dramatic investment in improving the global state of the internet, those machines will download movies just as well as the ones without Blu-ray drives.
This also assumes that the current trend for data caps is lifted or alleviated as speeds increase. Which will require further investment in infrastructure, which is already not happening fast enough to even begin to talk about Blu-ray being 'dead'. Which brings us on to...
3) Dead bored of 'dead'
The term 'dead' when applied to Blu-ray is just plain factually wrong. Blu-ray sales are still increasing year-on-year. Trying to argue that Blu-ray has failed or is in some way being phased out or has reached its peak already is a silly thing to say, and just undermines whatever you're saying about anything else.
4) Comparisons
It isn't like the floppy drive situation at all, because they were an ancient technology that was replaced by newer technology that was superior in every way and available to everyone. Downloads, other than the convenience factor for those with fast internet connections, are still inferior in many ways, and that is due to the fact they are more highly compressed in order to appeal to as many people as possible, because it is a known fact that large video files are pushing the viability of downloads right now. It will still be many years until everyone can easily access these files even at the current quality levels, let alone anything that matches the files on Blu-ray discs. iTunes for music was good enough for many people, but I think video is a very different beast.
Also, even if it was like the floppy drive situation (which it isn't), when they dropped the floppy drive, anyone who needed one went and bought an external and life was fine because the Mac OS supported the drives perfectly for everything you did with a floppy drive. I can buy a Blu-ray drive for my next mac (Mac Pro please, soon!), but then if I want to use it for playing back movies then because Apple is waiting for the future to arrive, I'd have to kludge about with iffy software on OS X or else install Windows. It's crazy, Jobs is being petty on this.
Also, Jobs liking Blu-ray to DVD-A/SACD is either wilfully disingenuous or just asinine. To be generous maybe he thinks he is only making the point that quality doesn't matter to lots of people, not that Blu-ray is such a niche product - but I think he's smart enough to also realise that it sounds like he is belittling Blu-ray's success at the same time, and I think that is part of the effect he is going for.
5) SHOW ME THE ALTERNATIVE THEN! In the UK I can't even buy HD movies, even if I had both the internet connection to make it credible, and the disregard for quality that made it a desirable choice for me personally. So Apple don't want me to play back Blu-rays in OS X, but they won't give me the alternative they are championing. Even in the US iTunes store, you have a choice of 817 HD movies. Go on Amazon.com, and on 'dead' Blu-ray you have currently have a choice of 7,908 Blu-ray titles, (many of which will be cheaper and have more extra features than the few iTunes counterparts that exist).
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To underline the most important points, that regardless of whether you love Blu-ray, understand the benefits to the consumer of physical media (as opposed to the content owners/distributors/retailers) - The Internet Is Not Ready Anytime Soon. Unless Jobs proposes dipping into that large cash pile Apple are sitting on and investing in the world's internet infrastructure, physical media is not going anywhere for at least the life of a few computers. Whatever you want the future to be, crippling current models doesn't change that fact.