What brings me out to a Convention?
#1: Kill it and Take its Stuff: If a large convention is a monster then I'm the adventurer on a mission. Sure, fighting it can be fun and talking to it has its moments as well. Even travelling to the monster has a certain level of excitment and is a change of pace.
But what I REALLY want to do most to the Convention Monster is to kill it and take its stuff.
It's a toss up for me as to what the #1 attraction at GenCon is. Sometimes I consider it to be the Dealer Room (Main Exhibit Hall), other times, it's the Auction Hall.
In either case - it's The Stuff that I love the most.
#2 Talking About New Stuff, previews of New Stuff, and talking about how best to use the Stuff I already have: I like seminars and discussions with other gamers and dealers and representatives of game companies.
Sharing my passion for gaming and gaming stuff with other like-minded individuals is hellafun.
#3 Playing with Stuff (Old and New): I prefer campaign gaming as opposed to convention RPG gaming. I'm primarily a DM so crafting adventires and running them is of interest. Playing? Not so much. I do enjoy boardgames at conventions though, as I rarely get a chance to play those at home and convention boardgaming is often better than home boardgaming. I do enjoy an opportunity to meet and play RPGs with other ENWorlders too and to see how other experienced DMs deal with issues that arise in their games.