There's a pretty big price difference (at least here in Norway) between silver- and blackface Fender amplifiers, but how big are the actual tonal differences? I've read about people loathing the silverface Fenders (especially the master volume ones from the mid to late 70s) and people who love their sound. I know the early silverface amps (the '68 ones) are the same as the late blackface ones, but how are the 70s models? Is the sound of the blackface amps so much better that it justifies the price difference or is it all "just hype"? I'm not too knowledgeable on Fender amps, but I'm kinda lusting for a Super Reverb and/or a Bassman head.