"...$4-$5 for a cup of good coffee in NYC is what ? Do the math, if you want to drink it five times a week..."Splitting differences and paying $4.50 for one coffee and aiming at $37 500 audio system, it would take 32 years for coffee to catch up.
($5 coffee and $50 000 system would meet after 38 years and $4 coffee and $50 000 system would be there after 48 years)