"This is almost too silly to comment on. It is nothing of the sort"
True.
"Twenty years from now Potter will be an item of nostalgia for a dimly-remembered childhood fad."
False
http://www.associatedcontent.com/article/215025/universal_studios_plans_a_harry_potter.html
No, really. Back in the '60's I remember a set of books that were fabulously popular entitled The Lord Of The Rings Trilogy. Who's ever hear of them since?
Oh. Yeah. Well, OK then. Never mind...