With me it was fairly simple - the S.O. has more fandoms and collections than I'll ever be able to get into. I can buy my usual average of 4 Transformers a year and maintain a computer room which looks like it could launch the space shuttle, and she gets her books, manga, videogames, DVDs, CDs, fanfic, DnD, magazines, stationery, stuffed animals, a fast internet connection, and occasionally extra sets of shelving.