I'm perfectly happy with bikes the way they are. If anything, I think we could use some "downgrades"- like a return to downtube shifters. Further complicating bikes and adding more crap, will not improve the riding experience; it will hinder it. Keeping things as simple and light as possible, while having what you need to make riding efficient, is the key to the cycling experience. Bikes are already to that point- and beyond. Less is more.