I guess that's understandable. I live between Philly and NYC, so I actually have a pretty good location for going to shows. Ive been to hundreds of shows, and I imagined that most people here would have as well.
@Elric of Melniboné - It really depends. I have been disappointed by live shows compared with recorded material as well. Most metal bands (that arent big acts) are usually just mediocre live, so a lot of the times the recordings are even better than the show. The biggest shocker ive ever seen live was probably Primus. They are just some stupid joke funk-rock on cd, but they jam out live and far exceeded my expectations when I saw them. The festival atmosphere and the copious sharing of marijuana probably added to my enjoyment, but they were still an exceptional live band.
Im not saying that seeing Gojira live will automatically make you a convert or anything, because if you cant stand djent or metalcore type stuff in any capacity then I still wont expect you to enjoy it, but I just found them to be a whole lot more exciting live than on cd. I used to be more of a fan than I am now (cant listen to their cds anymore cause I find it boring), so ymmv of course.