Vegas would be horrible for everyone in temrs of gaming.
Exhibitors and Vendors would have the venue really competing and drawing away people. Your new competiton isnt just other gamign vendors, but every entertainment and gambling activity in all of Las Vegas.
Also, that means fewer people at the events. .
Slightly to the west. Indy isnt perfectly centric, but better than Vegas.
Heat. its miserable in August. Gamer funk will hit bio-weapon level. Not everyone can fit on the monorial.
August isn't deserted in Vegas. And the convention would be spread out. Less of a gaming community experience as GenCon attendees are spread out and swallowed up by the normal Vegas crowd. Monorial doesnt hit everywhere.
Vegas might be great for a typical convention, but GenCon, (just like its atendees) isn't quite typical. I dont think its a good fit.
Don't get me wrong. I've enjoyed Vegas. Will go again. but if I go to Vegas, I'm going to be spending all of that time experiencing Vegas for what it is--which is not going to be a receptive place for Gamers, nor as good a venue for all of the Gencon community : exhibitors, atendees, and Vendors.
I cetainly dont harbor any illusion that Vegas will ever grow to be as pleased with, and accomodating to GenCon as Indy has.
And Vegas really isn't family friendly. There was some advertisement proaganda about it, but Sin City has changed its mind since the 1990's. butThere are some still kid friendly attractions, but overall its not a place to go to with kids. Of any age, really. In fact, I'd get more worried the older they get. For younger kids, you are basically stuck with Excalibur and Circus Circus as your safest bets. Going anywhere else..and suddenly you have to explain a lot of things to little Timmy, especially that those guys on the street are not passing out Pokemon cards.
Really, just a bad, idea.