Really like what Brewmaster said...my fave amp currently is a SF Deluxe Reverb, and the thing that I dislike about them, is that they sock a LOT of voltage to the 6V6s. I don't have a problem with tube life, I only play at home anyway and not that often, and the amp is healthy, but the circuit was designed when US made 6V6s were cheap and plentiful. But waddya gonna do? If I was playing out, I wouldn't use anything that I couldn't replace or miss if it was destroyed or stolen, not if I could help it anyway.
Edited to add: I use JAN NOS Philips 6V6s in my DR.
+1 on the comment about drunks and the audience. There's a Carl Perkins story from back in the '50s (I'm sure that others have done something similar in one way or another), he played a kinda-LP shaped Harmony Stratotone in honky-tonks early in his career, he wanted a Les Paul but couldn't afford one at the time, so he covered the name on the headstock with tape so people would think he had a LP. But, he realized that 'drunks can't read no how'. /emoticons/default_cool.png Not many people go to a club to check out gear, not the general public anyway. Besides, it's too damn noisy in a club, you have to use an amp that will cut through to the audience to be heard, as well as fit in with your bandmates. Any nuances get lost in the crowd, IMHO.