Music's my dominant interest as well. Pretty much everything that can be done with music - playing, listening, writing, producing, organizing, critiquing, collecting, etc... I do a lot.
I don't even watch TV in my room because for every minute the TV's on, music's not playing! I play video games nowadays mostly for the purpose of music. Thankfully a lot of games have nice music; those that don't aren't worth my time.
Nice call with the video game music! I have quite a few video game soundtracks, with diverse styles. ;D Video Game music's really underrated - it deserves to be up there with film/movie scores.