Would love to see some blind tests of both high end and budget amps against each other to find out if there's really any difference other than the extra 0's on the expensive ones. Not sure how one acquires a bunch of amps without having to lay out some serious coin...I doubt if companies at the higher end would loan out any equipment knowing they'll be tested against amps costing less than a 1/3 of theirs.

Half of communication is listening. You can't listen with your mouth.