I am considering a modest disc upgrade. Will probably buy a deore wheelset and brake combo as rest of bike is deore and lx. In your experience will discs, or at least discs in this price range, deliver a few hundred worth of increased performance over quality v-brakes and pads? Is hydraulic worth extra cost over mechanical? How do they last in general, replacement pads and rotors seem a little pricey if they frequently wear out. Your input is greatly apprecialted.