The first dozen shows set the pace. It's fine if ya want another trip to Vegas to escape work for a while, or to meet up with some folks.
Never been to a show in years now - it's a repetition of previous shows - time and again. How many repeats ya want to watch?
If there was a show which had actual substance at a business level and no bullshit - sure, would certainly think of attending.
The best contacts - and now longstanding friends from trade shows, were made away from the drunk idiots, bullshitters and models (eyecandy tho they may be)
It may also be a clue to change the term from "shows" to "conferences" and have these in more interesting locations.
Bottom line... unless it's business - it has little interest. Booze, big tits and less bullshit I can find 20 mins away and no need to travel to Vegas.