I refused to see the movies when the books became delayed for their production. So I say HP1 and HP2 in theaters, but never the others out of my indignation that a 'writer' who'd already made lavish amounts of money would delay their writing - that which they started out with and created the - for the production of movies for the sole purpose of raking in more monies. As I saw it.
I read all the books, as soon as they were available, generally multiple times after an initial cover to cover within the first 24 hours. Books 1, 2, and 3 I read in one weekend (didn't know the series existed before that) and I had to wait like everyone else for the rest - Book 4 was excellent and I liked where the ideas were going. Book 5 would have been the last really solid title (in my opinion) IF it had served its full function as a bridge between Book 4 and Book 6, but it fell down on the job with that somewhat and Book 6 came off as a left turn made for reasons unknown. Book 7 was decent, but entirely too long for what it was - and I had no interest in the Harry-Ron-Hermione camping trip that dominates the book. How it could be that the three most lucky and clever wizards at Hogwarts school with fairly outstanding wit and intellect for their age could decide that wandering around aimlessly was going to produce a solution to the biggest crisis of wizard-kind I will never comprehend. Like many people, I was perturbed by the feeling of the Epilog. It felt more like a "LEAVE ME ALONE" note from J.K. than anything else.
The movies look cool though. They look better than the books were, and that makes me tempted to see them. I figure, since I took myself out of the HP game when the last book closed in my hand, I'll just wait until the fervor dies down and put the DVD set on my Christmas list.