I think there's a boot of the Lindsey show I went to last year, but I haven't heard it. I did watch the sole clip on youtube and was embarrassed by our lack of enthusiasm during Tusk.
In the case of video boots, I think it's cool to see the show from another perspective. It has never erased my memory, lol. As far as listening goes, same thing, minus the perspective. It's just nice to have it to replay, and actually sometimes it JOGS my memory of some of the things said in between songs. I don't think anyone walks away from a concert remembering everything. I'll blurt out a detail or quote that I just remembered days later because something has reminded me.