I think that next year will be the year that I finally attend the MGC and attempt to part with a good chunk of my stuff.
back story:
I used to author guides for prima and brady games. the money gained from that job fueled a stupidly large purchasing fever for about 8-10 years. I currently possess well over 2,000 sealed games (ps1, ps2, dreamcast, N64, gamecube, gameboy color, gameboy advance, DS) of both the us and japanese flavors.
as I'm getting into pinball and arcade restorations more and more, it's time to clear space and reduce the collection.
most of my goods are pristine (many of the items that I've sold off have garnered 90-95+ VGC ratings [not that I buy into that]) and I've got a few oddities and some rather cool collectibles among my collection (a brand new in box panasonic Q w/ the gameboy advance player, also brand new in box), a sealed copy of ZXE-D: legend of plasmalite (w/ the part swappable bandai robot model kits) and a complete run of weekly famitsu magazine from the time that they went weekly (back in 1991) to present
I've been attempting to catalog everything, but as anyone who has a sizeable collection knows, that takes time and dedication.