What are the advantages to a Class A amp & what are the trade offs?


I've never had a class a amp but am considering one now. So what am I getting myself into?
128x128artemus_5
I listen to music every day, I glance at my electricity bill once a month. :-)
I like that. Sounds like something I'd say

Class-A has yet to be equaled in my experience.
Correct, if done right.

Why do many of us spend $$$K's on our equipment especially BS cables, for only 10% "if any" in sound quality increase over something that cost a 10th or 100th of the price.
Yet we cry murder for nowhere near the extra cost of using Class-A amps and the power they consume, (Class-D users are especially known for this)

Cheers George