$0. You are an audiophile if you love music, sounds, and notice and appreciate all the nuances you can experience in listening. Steve Gutenberg knew he was an "audiophile" when he'd spend time just listening to the various qualities of hiss between FM stations.
Money and equipment are the means to let us experience that which we love, but it doesn't make you an audiophile.
At what price is one considered an Audiophile.
Audiophilia, what is is it?
Is it the love of music or the equipment that presents the music.
Or is it both?
What is the cost of admission?
How much does one have to spend on equipment to be considered an Audiophile, if it is truly the later than the music.
What has membership to this perceived exclusive club cost you?