[JesseK]

It may not just be about ice cream, but rather about the people and the ice cream shop itself.

Mr. Baker could very easily go to a grocery store and get any of the 100's of flavors in the freezer section. He could probably also go to a competitor of that shop. Mr. Baker didn't because he was either lazy at the time or likes the people in the ice cream shop ... or both.

To me the quote is about how easy it is to spend too much time making decisions about little things that don't really matter.