Been attending industry specific tradeshows in Vegas for the past 18 years or so (mostly Caesars, Paris, Mirage) and then on the east coast at Gaylord in Baltimore and a bunch of hotel/convention centers in Texas (one in Orlando too but I can't remember which hotel/convention center).

The Freeman have got it on lockdown as far as getting any product or materials onto the tradeshow floor (you can't carry in your own crates, monitors, etc.)

I don't remember if the shows get a kickback for the internet part of it or it's just between the internet company and the location.