Is Oprah's Book Club all that bad?

Last month I wrote about The Lovely Bones and The Road being turned into films, and how (correct me if I’m wrong) both novels are part of Oprah’s Book Club. Her latest pick is The Story of Edgar Sawtelle by David Wroblewski, and while I haven’t read it yet it was the selection for my book club two months and our group tends to pick some pretty good reads, if I do say so myself (apologies to my book club for missing yet another great meeting!). So if Oprah is choosing good books and people are liking these good books, then why do some people see the Oprah Book Club as a pejorative statement of what is good literature?
Check out the Oprah Book Club official selections list. Some pretty good stuff there, and some great literary talent:
If I’m not allowed to gripe about how kids read tons of Harry Potter books but nothing else, and the reason I’m not allowed to gripe about it is because at least kids are reading, isn’t it also true that people shouldn’t get to gripe about Oprah getting millions of people who wouldn’t normally think of picking up a book to not only read something great but to read regularly?
Maybe I just want my cake and read it, too.
-nm