How long does Class A have?


Hi Guys/Gals
 I have a Sugden A21SE which is a Pure Class A single ended design, I absolutely love this musical amplifier with its strangely plentiful 30wpc, it runs hots as they do, I always enjoy watching the faces of my uninitiated friends when they touch it after I mention they get hot, lol.
But in this modern green era I wonder just how long do Class A amplifiers have before Greta Thunberg gets wind of this inefficient method of creating sound and pisses on the parade?

Thoughts?
mrmeaner
As long as the speaker I want needs/wants a lot of juice (Magnepan at present), I’ll likely use a Class D power amp, likely preceded by a tube or Class A front end. But I am one of those who also finds Class A has a certain appeal with high-efficiency speakers, and so I will have my First Watt/Pass (diy) amps in secondary setups. I’m on all-wind power, so I don’t feel guilty leaving it on. But I’d still feel pretty silly running a 100-watt or similar size Class A amp.
We need more Greta Thunbergs
We get too much useless hot air from politicians and political commentators as it is.



Spenav  - Alberto not Roberto-- just sayin-- I have his amps and love them--
    As we die off, our heirs will throw our prized systems in the rental dumpsters.  I retrieved a lot of things my sisters threw away.  They will trash my stuff, unless I donate it to, maybe, a theater, which will quickly destroy it from ignorance.
Cheers!
  Boy was I sleeping ! I have a Duramax Diesel, VW TDI  Diesel , Ranger bass boat with a large displacement 2 stroke, 2 Harleys . Indoors I’m running tubes and a plasma TV . Not even going to list my guns!  I believe that we are such a small society we will continue to fly under the radar ! But to support my Transistor Brethren , I promise to buy a First Watt next spring when funding becomes available. In closing I’ll say this “ I love you guys and there’s not a damn thing anyone can do about it “. Happy Listening , Mike .