Ok.
When I go to see a movie, there is one criterion by which I judge it, and one criterion only: was I entertained? Many other things play into that, certainly, but that's what it comes down to.
Now, Lord of the Rings. I find it well-done, superbly filmed and acted, but the story bores me to tears and I find the characterisation for the majority of the characters to be lacking depth. Therefore, even though I can appreciate the visuals and the effort that went into making the movie, it does not entertain me.
The Room, on the other hand, is batshit insane. It is disjointed, badly acted in places and there is not really all that much of a plot at all. However, this does not matter to me because watching The Room means that I will laugh, and I will laugh a lot. Therefore, it entertains me, and I prefer it over LotR.
Why is this way of looking at movies (and, by extension, at music) wrong?