My dad's Zenith - been in the family since new

[TUD1]

After I got this radio playing, the president of the radio club told me to make a list of all the tubes I had to get. I had to get 2 6X5GT's, 2 6V6GT's, and a 6K7. The total bill was $59. I was stunned that the 6V6's could cost $20 a pop. Is that a good deal?