MC,
These places have a very well climate controlled stage. in most venues on 24' celings from the stage.
and the depth and capabilities of putting 3 rows of flown and rigged ariael lighting in them which should easily take out 300 amps of circuitry easily with the need for an extra generator in a nanosecond for audio. I doubt it will ever occur.. but it's totally possible with some promoters and the bar owners now going to concerts in small clubs in some cities. never for karaoke or corperate.
the venues are now completely capable of hosting touring acts & concerts.
Although most never will except about 6 places that we have ever been in.
and do on a regular basis. i shouldn't say never anymore .. some places i have done sound in have literally amazed me.