Whats special about the technology? Unlike modern performers "SRV" doesn't need auto tune and mixing to sound good.
Unless you mean some bands are way better live and some suck live. The B52's are one of the best bands to me but when I saw them live in Lancaster PA at a small theater with a good sound system along with the way they do the show, with all the bits in between songs, they were beyond amazing. Plus I could actually hear kate peirsons voice over the loud speakers because I was right in front of her. It was more then a bunch of songs it was a two or three hour act with lots of improvising and playing every song slightly different and longer then their records, where every bit was worth watching. They closed with love shack because they have to, BUT they came back on stage and played Planet Clair which is their best song. They are also really cool to the fans and don't act better then anyone else coming down to meet people in the crowed after the show. If you live near PA this is also the best venue to see any band, just don't runover any Amish people, when it's raining really bad they have no lights on their horse drawn carriage thing which is totally black with only a little orange triangle on the back. Seriously if I wasn't paying attention with good tires and breaks I would have nailed them.
Some people are horrible live like "whitey Ford" from the 90's, his CD was decent because he had many tries to get it right and mixing but when seen live you realized how much they sucked, like all the pop stars that lip sync their own songs.
One band that was disappointing to see live was steely dan.. They are so good that a big huge arena just can't reproduce their sound. They even had at least 12 people performing all at once since there is just two of them; vocals guitar and keyboard. They are just too good putting ridiculous effort and perfection into their recordings. There is a music museum with a one of their keyboards in it that they set on fire because it wasn't making the perfect sound. But I bet if they played in Lancaster PA that would be a good show.