What's struck me in the last few days, since my epiphany, is that it seems very difficult to buy SACD/DVD-A titles now, surely record companies could be generating even more download sales by selling hi-res multichannel files?
Unfortunately, it was YAFW(Yet another format war). So instead of just getting on with it, the backers behind the respective formats were trying to corner the market. So universal players were not common, labels were aligned to a particular format (normally), buyers suffered, the market stalled etc
You can still get stuff from Japan, but its expensive and the import duties are crippling. But they sure do know how to package physical discs. I still treat myself to the odd import, then kick myself when the customs fees are sent to me.
https://www.cdjapan.co.jp/music/hfcd/sacd/They also do SHM SACD which I have never bought, but SHM CD's are normally exquisitely packaged.
You should keep an eye out for a Vanity Board for your oppo if you are serious about physical multichannel disks. They are hard to come by but do appear from time to time. But it will unlock the HiRes formats avoiding the need for a HD621.
Regards
Greg