Original book covers Vs. Movie poster book covers

example:

                I detest when a book is made into a movie and the book cover is changed into the movie poster.

I have a couple books with the movie poster cover for reasons such as, I've been wanting a certain book and I find it at a thrift store, but I try to steer away from these covers. Mostly when the movie wasn't good to begin with. They do this to boost the book sales, but I want to see the original art of the book cover, not the protagonist that played in the movie.                                        Is it just me or do any of you hate this also?