Yeah, well, don't get me wrong, I love Zeppelin, and I'm sure they have their integrity, but I've just sort of come to the conclusion that all reunion tours are pretty much bullshit.
But then again, I've never been one for stadium rock shows. If I had the preference between seeing a band in a 15,000 seat arena, and seeing the same band in a smaller venue where everyone is standing, crowded, and sweating, I'm going to go for the smaller venue. It's a much better atmosphere, I think.
But, I have seen some great stadium acts; I went to see Roger Waters last year, during the first American leg of his Dark Side of the Moon Tour, and I hold that show up to be one of the best shows I've attended.
Making money isn't necessarily a bad thing, so long as the fans and the art are put ahead of it.