role of the remake

recently i saw 'the karate kid' at my gym and discovered they did a remake of it in 2010. not that i love the movie or that i'm a fan of remakes, but doesn't it make more sense to makeover a movie that really needs tweaking, eg, 'some kind of wonderful'? (i wish watts had been more forthright.)

*yes, that's me; i do impressions of mary stuart masterson and charlie sheen.