adjustable bridges

  Why don't acoustic guitars have adjustable bridges? All 'leccies have 'em. Look at any electric guitar and you'll see it has a bar to hold the strings away from the body where they are attached at the non-tuning end. It has adjustable height, and the length of each string is adjustable at this bridge. On acoustics, you have to use bits of folded paper to get your strings heigher off the neck, and cut groves into the bridge to lower them. Even worse, there is absolutely no way to shorten or lengther strings, which means that your strings may be out of tune higher up the neck. How silly.