^^
Must be nice having a partner who shares the same affinity for game collecting.
It's both amazing and very, very bad. We both love games, but for very different reasons, and very different games. We end up buying a lot more games that way, because it's something one of us wants or the other. I've always been a fan of adventure games (Zelda style) and RPGs, whereas he likes fighting games and FPSes. Therefore, we end up getting a lot more games than either of us really WANT, because we're getting games for our own interest. Example: We have the PS2 AND Gamecube Resident Evil Chainsaw Controllers and Steel Battalion, all on a shelf. I'd have no interest in any of them, on my own. But the shelf beside it has every preorder bonus they've ever given for Harvest Moon. So it's very give and take, even within the same hobby. And it means we need more storage space than we have, for sure.
When we do find a game for both of us together, it's AMAZING. For example, we played Portal 2 together, get very competitive in Soul Calibur, we both love Behemoth games (Alien Hominid, Castle Crashers) and we have had several enjoyable nights finding walkthroughs for games and taking turns playing through them. (We did D recently, that was great.)