Pretty high. Figures, DVDs, posters, shirts, Megami and Dengeki magazines lying around pretty much everywhere, and tons of other random merchandise that I don't really use for anything but absolutely must own anyway (Clannad bed sheets anyone?). I'm pretty much that guy you see in those pictures that not-as-hardcore fans use to try and feel "better" about themselves, except I actually have a full-time job which helps to pay for this stuff.
I don't talk to anyone at said job about anime (or anything for that matter) though, and would also not cosplay even if paid to.