What is a non metal. Surely there are listeners who are partly metal. Who maybe listen to metal sometimes, but listen to other stuff. Man I don't know if those people exist on mass but I am one of them. I love metal much to the amusement of everyone I know. I would argue this is the normal rather then the exceptional experience of most metalheads. We are a minority, unless you live on planet metal.
Is this simple fact not the defining moment of a metalhead. We are all not Manowar warriors but rather men or women making a living doing wwhat we do and loving this music. I tried as a musician and it did not work out for me. I am not bitter but rather exultant that the scene carries on with my small and microscopic support thru CD sales and websites.
That is the best I can do.