DKΣ3713 event, besides getting to play new games and see trailers and be surrounded by journalists (what do you mean that's no benefit?) is that awesome exclusive merchandise is available for purchase.
Seen above: two strangely fashion-backward shirts for the very fashionable The World Ends with You. They feature the date of the event and the TWEWY skull logo on the back, and an assertion that "I PARTICIPATE IN THIS GAME" on the front. We must admit that we're charmed by the boldness of the shirt. Sometimes you want to wear art, and sometimes you just want to be a huge nerd.