I found this excerpt about Dubrow's in an article by Luke Ford about the conservative talk show host Dennis Prager:
"In late 1963, bored with school, Dennis embarked on an intense exploration of Manhattan's cultural attractions. One day he bought a $1 ticket to hear Alexander Schneider and his chamber group play Handel's Concerti Grossi at Carnegie Hall. Prager fell in love with classical music. The next day he spent two weeks lunch money and allowance ($32) to buy concert tickets at Carnegie.
For the rest of high school, Dennis spent two-to-three evenings a week in Manhattan, attending plays, concerts and book stores. He usually ate his dinner (tuna fish salad plate, apple pie and coffee for $1.50) at Dubrow's Cafeteria by the subway station on King Highway."