My collection includes (but not limited to);
Sony MDR-1RBT - The prize of my collection. Wired and Bluetooth. Daily use. Best sounding headphones I own.
Sony MDR XBA-1ip - Good simple and very clear bud. Modified with foam tips.
KOSS Porta Pro - Great simple headphone, cheap too. cost me 20 bucks.
Grado SR-80 - Bought them 14 years ago. Only play with these once in a while when I'm comparing any new headphones I buy.
Incase Sonic - I wear these in bed at night so I don't disturb my wife.
Shure E4C - Sounds great. like an earbud version of the Grado SR-80. Not one I use much anymore.
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I own these... I opened them and tried them... then I put them back in the box and they sit in my drawer.
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Been using a pair of Shure E4c for over a year with my 5G iPod. They're expensive (cost more than my iPod!) but excellent. Plan to carry on using them with the Touch.
Heh... that's like putting $1000 tires on a Hyundai Elantra.
I have these headphones too. Good stuff.