I'm going through a painful process of deciding what to get rid of too....
I've spent the last three years buying loads of old film gear on eBay and other places but having 30+ cameras and only using a few regularly tells me I should cut back, and I hardly ever use my 35mm gear since I got a Rollei and I'm hankering for a 645 with autofocus that could replace 35mm for almost everything I still use it for...maybe if I lose most of my gear I can get a Pentax or maybe squeeze a mamiya...
I'm not selling gear for the hell of it though...only to get something better!