Did Joshua Bell explain the value of wine?

Perhaps the most plausible explanation of "is it really worth it?", it happened in a New York subway in 2007 with a violin.

During my brief period in the public eye on television the most common question I was asked was “what’s the most expensive wine you’ve ever had?”. The second most common question was “was it worth it?”

My answer to the “worth it” question was always equivocal. Now I know why.

In 2007 the violinist Joshua Bell played as an incognito busker at a Washington …