team_negative1 said:
The beauty of the digital format is that, you can upgrade your monitor, projector, or TV when you wish, and gain benefit from it, accordingly.
Theoretically the back-end resolution could be bumped as new scans are made, but I'm not sure that's really ever happened. Furthermore, that puts you even more at risk of having the media you "bought" replaced with a orange-and-teal revised director's cut monstrosity without notice. If you're just talking about "it's just high res", well, I certainly started buying Blu-rays long before I had an HDTV, so I got the benefit of the hardware upgrade just the same. That's just an effect of upgrading the players before the display.
Frankly for most consumers, if you buy a (good quality) Blu-ray today, there is no upgrade needed for any future display. It's a terminal physical format in the good sense of the term*. It's not perfect, sure, but the imperfections are something nearly every consumer wouldn't notice, let alone care about. The handful of people who want more will keep chasing the AV rainbow no matter what.
* Terminal physical format in the sense that CD was the terminal physical music format. Successor formats existed, but few even knew what they were, let alone bought them.