I think that first you would have to clearly define 'audiophile'. That said, I would suspect it is a general percentage of the population, maybe higher in states with higher incomes, so I would suspect the top 3 to be California, Texas and New York, though the order may vary. Over the years, it seems to me that California and New York seem to present the highest percentage of ads on AudiogoN. Pennsylvania reporting here.
Cheers,
John
Cheers,
John