The transition to a GUI, and eventually to one close to a Macintosh, was a far greater step than refinements since. Some of these are just simple alternatives, which can't be over-valued due to increasing the complexity of having less consistency in how things are done. Others of these are more akin to rearranging the furniture. The great change was in becoming a modern GUI machine. In that sense, virtually every machine is a 'Macintosh' now.

Explaining his comment that now "Every PC is a Macintosh", "Letters-General Questions Answered" p. 105 - Woz.org files