Battle of the Headphones
It may come as no surprise that the poker world can be an insular one, something that is apparent at the World Series. When scanning the room it's not uncommon to see many players wearing a certain brand of jeans or t-shirt. The biggest observation we've (or at least I) have made so far is the domination of two types of headphones, those being Beats by Dre and Quiet Comfort by Bose. There are a few iPod stock sets here and there, and Ivey wears Sony, but the two frontrunners are clearly Dre and Bose.
If things ever slow down enough, we might actually do a scientific (counting) survey, because we know you're dying to know.