Honestly, I'm not at a show to watch somebody perform their music, I'm there to enjoy that music with a few hundred/thousand other people, and listen to it on a big stereo.
It's a socializing thing, not a consumption thing.
I think most people are in the same boat with you. When you are young you tend to push close up to the stage or jump into the thick of things, maybe because you like mosh pits.
When you get older it's all about going to hear how well the band performs live and enjoy a tasty adult beverage. Most entertainment venues I visit now I end up standing toward the back.
With the exception of Gorillaz, I probably wouldn't pay to see A holographic artist perform, but I would pay to see a bunch of them perform together. Elvis, Buddy Holly, Tupac, Ricky Valenz, Kurt Cobain, etc. Get DJ BC to create the mashup, and away we go.
I think a Sci-Fi "theater" would be nice too, just imagine all the things from The Matrix happening in real time in front of you (that is, just a believable 3D without glasses).
Honestly, I'm not at a show to watch somebody perform their music, I'm there to enjoy that music with a few hundred/thousand other people, and listen to it on a big stereo.
It's a socializing thing, not a consumption thing.