I own around 5 pairs, 2 of them I normally use on a daily basis. I'm thinking of selling the rest because first of all, I only have one head and secondly, I barely use them now) but I'm not sure if I'll miss them... Here's what I have: Denon D2000(I use almost everyday) Sennheiser HD 25-1 II(I use on the go) Sennheiser HD 201(can sell or give away) Fake Beats by Dre Studio(I have no idea where I put them but they're like $50 anyway so it's okay) Grado SR125i(can sell) Koss TBSE1 (Pro DJ100) w/ M50 pads(can sell) Planning to sell the Grados, Koss and give away the HD201 but then again, I think I can also sell the HD25-1. I know this is all based on personal preference but I'm just wondering if I do really need the Grados and the Koss. Currently selling the Grados right now to fund for an SR325i but now I'm wondering if I do really need it... This goes the same with the Koss. I love the sound but I find myself using the D2000s most of the time but the HD25-1's are very good on the go. This pair I often take to school. Also, now I'm kinda wanting the K550 because of the many times they get compared with the D2000's and that's a whole other can of worms I'm opening up... Umm anyone here only have one pair? Or is it necessary to have at least two? I know someone that only has an LCD-2 but I really don't have that kind of money so I guess that can be my "D2000"... Er... lol opinions please.