I agree on them being worth it. That said, the best sounding headphones I've head (better than my HD 555's) were some 30 dollar Sony G74 (or something) 'street'

I agree on them being worth it. That said, the best sounding headphones I've head (better than my HD 555's) were some 30 dollar Sony G74 (or something) 'street' headphones that they don't make anymore. The trade-off was that they were easily the most uncomfortable headphones ever devised. It was literally too painful to wear them for extended amounts of time.