I just snagged a pair of Realistic K50's (re-branded AKG K250's) for $11. How'd I do? :)

[ChopperCharles]

I haven't had opportunity to test them much yet, but they are EXTREMELY comfortable. Even more comfortable than my Audio Technica ATH-3's! Except for the pesky elastic bands being stretched out, so they don't sit on my head perfectly. But I can replace those with some thin hair bands. I'm looking forward to comparing these with the rest of my vintage headphone collection... so far they have really good isolation, wonderful comfort, and great treble... bass seems to be lacking so far, but that describes most vintage headphones.
 
Time will tell, but I'm feeling these K50s may end up replacing the ATH-3 as my favorite headphone for listening at work...
 
Charles.