I use Sennheiser HD25's
I love them. They are my favorite closed back headphones.
However the earpads wear out REALLY quickly, and mine were getting really ratty.
I couldn't find ANY replacements in town, and the online shops that carried them were all over seas.
Replacement pads were going to run me $20-30 before shipping. That's not horrible considering the HD25's run $200, but if replacement parts were going to be THAT difficult to procure, I was seriously considering new cans.
As a last ditch effort I called up Sennheiser, and low and behold they had some in stock.
For $11 a pair!
It's like I've got brand new headphones again!