Anyone have an opinion on Mesa tubes? Of course that's what is in my Mesa Rectoverb since I bought it, but are they really worth their price? I've shopped around and they're more expensive than pretty much everything else I can find in store around here. The JJ are less expensive, and the EH too. I know most people will say that different makes give different tone, but are some makes reknown to last longer than others? Tubes are very expensive, specially when you have something like 7 or 8 in all, so I tend to lean toward reliability and long life compared to ultimate tone. So, is it worth spending the extra $$$ on Mesa tubes or is it all hype?