Got the SE-405 for $4 in the Flea Market, they are in great condition. Got home and rewire them and replaced the 6.3mm plug with a 3.5mm one.
Love how they sound, like so much that I bought the SE-305 on eBay for $25.00
These ones smell like new, I am pretty sure they were still in their box and the seller removed them to make the shipping cheaper.
Rewired them too, and I am listening to Led Zeppellin on my 7th gen iPod connected to my FiiO E17 amp and God...