On Mike's post (#19) .... yup.... I've heard that same line from a number of people.
(speaking about using a small amp)
Once you stick a mike in front of the grill...all bets are off and the only thing that matters is what the mike is hearing and picking up. A small amp is not going to sound like a big amp in a room..... but the mike is the great equalizer and the room's point of reference drops away quickly and all that matters is the tone being recorded.
What sounds like crap in person, may sound HUGE to the mike,,,,, throw some verb on it and it can sound like you have a wall of Marshalls stacked up and cranked to 11.... or maybe not a wall.....
But I have heard some famous musicians and some locals here in the forums speak of using small amps with great success. I've even seen and heard where the big bands with what looks to be walls of amps, are using small combo amps and the "stacks" are simply stage props for appearance only.