All the wonderful space stuff aside, the most fascinating thing about this to me is that everyone in the aerospace industry said it couldn't be done and it was a stupid impossible idea. So SpaceX just proved everyone wrong. Watching the failures and seeing that each new attempt was closer to success than the prior ones was a study in tenacity. Elon Musk is one heck of a visionary, and he is not afraid to fail very publicly.
My father told me that he was sorry for my generation and those that followed. All the important "firsts" had already happened during his lifetime: flight, telephones, radio, TV, computers, spaceflight, etc. We were doomed to just do things better/faster/cheaper. Perhaps he was right, but that process of refinement is what makes things useful. What amazing times we live in.
73, Bob, WB4SON