You know you're an audiophile if--

you believe that accuracy is the pinnacle of sonic excellence and enjoy suffering the sound of a pooor quality recording because you believe it is indicative of a high quality audio system.

if you admit to being an audiophile you need therapy--audiophilia pathologica.

you spend an excessive amount of time, listening to music, buying and selling components, and talking about the hobby.

what constitutes "excessive" is determined by a panel of psychiatrists or psychologists.

the hobby can be a disease if one neglects other important activities of living.

your stereo system is your highest priority, and/or, your stereo system ( a material thing) takes precedence over human relationships.