Streaming used to mean sacrificing quality, but as compression has gotten better (H.265) and bandwidth has improved, the quality has gotten a lot better and is close to Blu-ray now in regard to 4K streams (4K disc is still better, IMO). The audio isn't as good, but like the video, is getting better. The Adam Project has outstanding sound quality (best I've heard on streaming). If that level of quality can consistently be attained, I wouldn't want to be in the disc manufacturing business, that's for sure. That being said, I don't think discs will go away anytime soon, but if sales drop too much, we will see it become even more niche and pricing will go up (similar to Laser Disc pricing from the early 90s).
NEWS ITEM: SPORTS AND STREAMING This broke today in New York. Some people hate to hear this but sports has always been a business first and a game second. But Sports is always after the dollar first and the ball second. For the last 20 Years, the YES network has carried almost all the Yankee games. A few, every year went on FOX (Channel 5 here) and a few were on ESPN’s Sunday Night Baseball. Traditionally, Channel 11, which before cable televised 100 Yankee games, broadcasted about 20 on regular TV. But both Channel 11 and Yes were available to everyone in NY. Amazon bought 15% of the Yes Network and now 21 games will be televised on Amazon on not on cable. Amazon now has the exclusive rights to Thursday Night Football.Apple TV bought streaming rights and will be televising many games on Friday night, unavailable on cable. So at least 20% of the Yankee games will not be available to people who have paid for it in our cable bills. Further, if this works for the Yankees other teams will follow. We will be paying more money for the same products.
With respect to sports, I've become mostly a football fan. Aside from my college team's games I check a few other (mostly SEC rivals) games and "big" games. Then the NFL on their increasingly broad range of nights. But the big thing for me is I don't watch any games live, and frequently make use of my DVR's ability to skip commercials. I even use the 30 second skip feature in game at times b/c of the time plays take. I am not interested in spending 3 - 3 1/2 hours watching the vast majority of games. So with respect to football the question for me becomes, will Amazon (or others) A) Allow me to start watching a game after it has started but before it's done; B) Skip thru any commercials or other "dead" time in game? If either of those is "no" then streaming will be a negative that makes me watch less, not more.