My friends, even those who are fellow coders, are always amazed by how many books, tutorials, and videos I go through on a regular basis. They assume, for some strange reason, that because I have been doing this for such a long time I should know all that I will ever need to know. I don't think you can ever reach such a point.
Why was this important? With web programming lots of values are passed as strings, for example HTTP verbs. Now there are better patterns to use instead of long rambling switch statements, however when you have only a few possible values, nothing is more to the point than a switch.