I've amassed quite a collection in a short while, will probably keep most of them...
GS1000i for most at home listening, LCD-2 for certain genres, RS1 for rock and metal.
For portable on the go use presently deciding between my T5p and Ed8, and still want to audition the W3000ANV too.
I think if I really wanted I could get down to only 2-3 headphones, two for at home and one portable set.
EDIT: Oh, and forgot some crappy Sony IEMs I have for cycling n stuff.
Edited by NZtechfreak - 9/7/12 at 8:28pm