Jo Walton at Tor.com started with a post on Is There a Right Age to Read a Book? In a follow up, What's Reading For?, she noted that in the comments
…people started talking about prescribing childhood reading and talking about books as if they were vitamins that you should take because they’re good for you. There were comments about the immorality of re-reading because it causes you to miss new books, and comments about learning morality from reading. It all became surprisingly Victorian.
Leaving the good folk south of the Murray River aside for a minute, she followed with What's Reading For Part 2 : Books Do Furnish a Mind which also discusses re-reading.
Meanwhile Joe Queenan at the Wall Street Journal discusses My 6,128 Favorite Books – that's his, not mine.