For the record, I think anything that gets people to read is good. But this article has some choice quotations, and is worth reading regardless:

Through no fault of Rowling’s, Potter mania nonetheless trains children and adults to expect the roar of the coliseum, a mass-media experience that no other novel can possibly provide.

I’m thinking a longing for the roar of the coliseum could explain a lot about today’s culture, and not just Harry Potter.

So we’re experiencing the literary equivalent of a loss of biodiversity.

Tip: click on “Print this Article” to see the whole thing in a single screen. I hate it when newspapers break up articles.