When I was a kid a growing up in Ontario, Canada, Lake Erie was so polluted, I never thought it would ever, EVER be turned around where they could start cleaning it out in my lifetime!
You have to remember the band played from 1960 to 1965, every night. You get into a rut playing nightclubs every night, and you didn't want to run it into the ground.
You put a song on the record or on tape and you stop singing it. You just don't sit around and sing it anymore unless you're performing. That's kind of sad.