Right the reason why no film should be re-made is because of this. The original will always be better because it's the one that puts the story into your head. The re-make will there for always be pale in comparison to it.
Example Civickiller says he'd like to see a re-make of The Good, The Bad and The Ugly. If they did once he saw it he'd be very disappointed because he already knew the story. Not only that, the way Clint Eastwood and the other actors put in such a commanding performance in it. No matter what they did with the re-make, a allstar cast of the finest actors, 100's of millions of dollars spent on it, it would still be a poor re-make.
So this is why all re-makes are bad.