I've been mostly done with going to pro hockey games for years now (You can probably count on two hands the times I've gone to other sports or otherwise. (disclaimer - I'm not a sports guy)) I can go to a Princeton hockey game for $10 and enjoy the experience a lot more than if I went to a Devils game and paid $35 to $40 for the cheap seats. (I only go to Devils games now when they discount the tickets)
But I think concerts are the more unique experience for me anyway, but I'm done with artificially inflated ticket and memorabilia prices. Most concerts are a waste of money when Ticketbastard and Jive Nation are involved. The ticket price to non-Ticketbastard and Jive Nation shows is usually cheaper too.
Example: Look at the Dream Theater Beacon show and compare it with Albany, Morristown, and Philly.