Back in 2002 I dropped a large chunk of change on a pair of "true" 6.1 surround sound headphones. They were essentially a pair of normal headphones with extra speakers extending out to either side of each ear cup. They looked ridiculous. I loved them.
After spending three weeks with Razer's Tiamat 7.1, the world's first true 7.1 surround sound headset, I realize what an easy-to-please idiot I was ten years ago.