High End Amp Price Collapse musings

Yes indeed the times they are a changing and heavy amps will indeed be a thing of the past very soon. Class D and digital amps have indeed arrived and are spectacular. Very exciting times. They will only get better and that is exciting. 

The analogy is interesting because from the start hi definition flat panels were better than CRT scrrens, I don't think the same is true and maybe never will be with regard to class a and ab amps v. Class d amps

I'm not sure why anyone thinks engineers will be able to tweak class D to sound as good as class A. I look forward to your reasoning behind this notion.

Sure grannyring; just like full range loudspeakers will
be getting much lighter---not.

Most Audiophiles who know the difference between class A and D , etc, will pay a premium for their preference. The used prices will stay steady, imo, until the people who demand such dies off. If enough new audiophiles who care keep "sprouting up" through the years, expect steady pricing.

The general buyer who buys a Pioneer Elite receiver and streams "lossy" music from their phone to various rooms in their house will care less about amp class.

The thing about many of those big, heavy older Class A amps is that they were made so good. Think about it. Many people still have 1960’s and 70's McIntoshes at the heart of their system. That really says a lot.