Of Taildraggers and Shaving Brushes

This blog post at Travel for Aircraft marries the seemingly dissimilar subjects of aircrafts and wet-shaving in a lengthy article. The blogger concludes that:
In either case — whether moving away from conventional gear type aircraft or leaving the shaving soap brush behind — when one modernizes one must often leave a little good behind to advance.
Though I'm not certain how soap and brush are like an airplane, I surely can agree with the rest.