Headphones are an "attractive nuisance." First, a cutie named DT 990 moves in with you. You're introduced to its friends, the Must-Have-New-Music family. Then, the groupies start arriving: Mr DAC and Ms Amp. Next thing you know, DT 990, an HD 650 you met on the Internet, and you are having threesomes.
haha, no but in all seriousness hd650 is a keeper.