This says otherwise. In November 2007 Blu-Ray had 71% of the sales.
http://www.geek.com/news/blu-ray-dominates-hd-dvd-with-71-of-disc-sales-570450/
The article I quoted you included worldwide sales. This is a US/Canada statistic you posted.
NDP had Blu Ray 51% marketshare just prior to the Warner Bros decision to drop HD-DVD (which had 48% worldwide marketshare).
This is one big strawman post that I don't care for.
Comcast got cap limits on you? Tough. I don't, and neither does this address my points.
Digital sales have crushed Blu Ray sales, so much that physical discs are pretty much a niche. People like you who want a physical library are in the minority. Even extras once exclusive to Blu-Rays are available under many digital sales. Quality wise, the difference between disc and streaming at 1080p is neglible. You only need to look at Amazon's and Netflix's highest bit rate to see there isn't much of a difference to warrant the easie of digital distribution vs physical media.
With 4k, this will tilt in favor back to discs, but history has a tendecy to repeat iself and this is no different.
If you're arguing that Blu-ray has no place in the current market, you couldn't be more wrong.
If you are arguing that the average individual simply doesn't care about what can be offered by Blu-ray, then yes, you are often right. These are the people who don't have decent surround sound systems, if at all, and just want quick access without messing with physical disc rentals. And in some cases, I too use Netflix and Amazon to watch movies, but only ones that I don't care much to truly experience the full details.
You won't have lossless sound codecs streaming for a long time I suspect. You're lucky to get DVD quality audio on streams, it's hardly ever that good.
And yes, it can be difficult for an untrained eye to appreciate the difference between Blu-ray and Netflix's highest bitrate, but it can be done for anyone who cares. The best stream I've ever come across is Vudu HDX, and they add some tricks to help make it look better too. But as a starting point it's a much higher bitrate.
Both formats (disc and streams) will have staying power because they have specific market segments carved out. Which is fine by me - options for everyone and I enjoy both options myself.