You would think that if the studios wished to avoid generating ill-will among existing fans (who are potential customers), they would follow some sort of guidelines to at least give off a respectful attitude. My suggestions:
1) Before you try to remake movies that really worked, remake movies that had a good concept, but failed in getting that onto the screen.
2) Before you try to remake a movie that seems just as entertaining today as when it was first made, remake movies that feel extremely dated.
3) Before you name a movie Movie Title (2010) consider naming it something else, so fans of Movie Title (1980) don't get upset.
4) If you have to remake a movie, be sure that you are keeping the elements that make the movie entertaining, and only adding things that will make it better.
5) Be sure obviously credit the original movie in the opening credits - I don't think the "original story/concept by Name" gives enough credit to the entire cast and crew of the previous movie that laid the groundwork.