It would be cool to see all the aircraft that were based at your home airport. See where your friends are going and have been. If it is not possible, how about a log of frequent aircraft. I am based at KBHM and will volunteer my plane for the task!!
We’ve actually been discussing something like this. The FAA registration data isn’t terribly useful for figuring out where aircraft are based. We could count up all orgins and destinations for a particular tail number and guess that the most visited airport is the aircraft’s home base, but I’m sure a few users would find cases where our guess is wrong.