i like IG's response! heehee...totally agree.
i recently started thinking about this, last dec. so i sold my first MJ bags...it was tough at first, but now it's not so bad to pare things down. i even created a google doc for my designer purse inventory, with bag info, season, where it was purchased from, purchase price, selling date, other comments, etc.
i think i'm trying to keep things down to an even dozen (or perhaps a few more).
p.s. i have to admit, that i don't include my 2-3 coach bags left (post-closet purging), casual "fun" throw around bags like tokidoki, harajuku lovers, the sak, in my count.