Good thought Granpa.

Just like a plain-jane kit that we can't leave alone, and upgrade over time, our setups and cars undergo the same transformation as our skill levels progress.
I can't count the number of times my car setups have changed because my ever-changing skill level demands more steering, more response, etc. What I thought was "dialed" 5 years ago, wouldn't cut it now as my skill level has changed.

Obviously, tracks, time of year, class type, etc. all have an affect on how I go about setting up a car, the final "feel" remains the same. The difference when you're skill level goes up, is how you go about reaching that "end-result", and what that final "feel", actually feels like.