Why O why?

Why I purchased a print of Nathan O. Marsh's illustration of the letter O from his Alphabet Apocrypha:

Nathan O. Marsh, Alphabet Apocrypha

1. Everyone loves an ornery orphan--especially one with outrageous organizational skills.
2. Okra--so often in the garden, so rarely on the wall.
3. Oligarchsburg, Ohio, of course.
4. An offal and onion offering. 
5. Obstructionist oafs--so often in committee meetings, so rarely on the wall.

6. The word with which I conclude almost all of my e-mails: Onward!