Meme Failure

I got tagged with the "50 concerts" meme on Facebook, which I can only assume is a subversive market research ploy by concert promoters to see who they should be turning out on the road more often to appeal to the graying nerd demographic.

First thought: I haven't /been/ to 50 concerts.
Second thought: Well, maybe I have, but I'm not sure the Philly Pops counts. What about the mandatory annual viewing of "The Nutcracker"?
Third thought: Even if we narrow it down to rock/folk concerts, my list is go