Frankly, I think you’ve nailed it. I have a small system running on a pair of Fosi V3s that sounds better than it has a right to. I also have a Rowland model 10 class D amp with upgraded power supplies that, after having some undisclosed issues addressed, sounds better than any amp I’ve ever owned in that system, and I’ve had a few good ones.Class D is very very good. And its affordable. Some would say Atmasphere is expensive. But I say the amps driving the M9 in another thread are expensive. Are Class D amps going to replace them. Probably not for a variety of reason. Many with nothing to do about sound. And plenty to do with sound.
Class D is shocking good when you consider a young couple in a condo with a pair of book shelf streaming Spotify. And thats probanly 90% of the market for stereo gear. As they look for a little better, and some more better, class D is going to remain the price point they can afford. Not tube and not AB. Not unless one or the other starts earning real money.
In my mind, it’s all about money and always has been. The anti-audiophile crowd loves to sneer at expensive equipment, and the price to performance ratio of some class D amps is pretty high, which gives that crowd some ammunition. But there will always be those of us that are chasing a different ideal.