I think of myself as a fan more because I like to hang around cons than anything else, even though I adore SF/F to the point of proselytizing. Fandom has been an excellent filter for me to find fascinating people. I don't find a significant difference to my enjoyment of fandom by type of media: so far I have enjoyed filkers and "media" fans (which means non-printed-material, I think) and writers and readers and costumers and so forth.