Pioneer SE-450 is definitly the most durable and reliable set of headphones. I used 1 pair (allthough modified) for over 6 years and only replaced the coushens once !
And even now, over 14 years after purchase I sometime use it, just for 'old times sake' :D
Nice headphone, I've got one as well!
Mine is modded too just like Lead's headphone (when I saw Lead's) only with a MDR-V700 coiled cable (the MDR did break very easy so I could use that coil for a legendary headphone!).