Besides Audio, what other ''passion'' do you have?

I have often wondered what other interests other audiophiles thrive on. Cars? Wine? model plane building? Baseball cards? Camping? Let's hear it ! As for me, it's mainly kept in the ''audio'' family. Piano and guitar (accoustic) although I am finding myself surprisingly interested in electric guitar magazines, and finding out that ''every guitar and amp combination has a tone, and that the pursuit of ''tone'' is the ultimate quest, not unlike our never-ending quest for the perfect sound I guess, as an audiophile. Interestingly enough, I'm also finding out that most self-respecting guitar player will use a tube amplifier, while the solid state camp will use solid state in ''modelling'' amps, amps that duplicate the sound of other famous amplifiers all in one ( Vox, Marshall, Fender and more). Now there's a community where the tube vs solid state discussion doesn't last long, in fact it's no contest... What's YOUR other hobby or interest ?