So, do you go for 'high end' or do you favour some of those criteria over others?I'm a manufacturer. So my criteria might be a bit different, but I'm also an audiophile. We all like to think we're getting good quality and we try to search for it; that is certainly what I do. I don't like getting something and finding out its so much junk... Most of the gear I own I've also auditioned in some form before purchase. In your case that will be your first move if you get serious about this amp.
All audiophiles know that no matter what the spec sheet says, what the dealer says, what the reviewer says, you have to bring it home and audition it. Even people that rely on specs only do that :) Irony is still in.