It use to be all you needed was a stop watch when you worked out. The watch helped you track your running time, your pulse, and your respiration. The fancier ones tracked laps and other stuff.
Now you can just stop by your local Best Buy and pick up a Wii or a Playstation Move and "play" your way to a newer, fitter you. But it doesn't stop there, you can get electronic calorie counters, diet planning software and of course lets not forget the MP3 for the music you have to listen to just to get through the workout.
Whatever happened to just going for a brisk walk? Playing catch with your kids? Walking to the store instead of taking the car? Going for a bike ride? Do we really need more gizmos?