I'll agree with the sports comparison, seeing a concert is very similar to attending a football, basketball, etc. game. Half the show is the people around you all sharing an interest. The other half is the show itself, when most of the time you don't know if your team is going to show up to play or get skunked.
It's not worth it to me, though. I'm more anti-social the older I get and fighting the crowds is always something I dread. The payoff has to be well worth it for me to brave a crowd, and I must be able to enjoy the concert from a reserved seat with little interference from those around me.
Besides if I get drunk and stoned enough, a I can develop a "metaphysical two-way energy exchange" with a DVD concert...:zombie: