As fortune would have it, I have just acquired 2 bicycles: 1 with 10 speed mechanical ultegra and the other with 10 speed mechanical 105. Both component groups are impressive and the 105 bike lacks Shimano brakes and hubs, and this shows, as the substitutes are a little lacking. (I always thought that if Colnago put their name on it, then that was a guarantee of high quality and performance - it seems not). But I can make this stuff last, I hope, and thus the subject of electrical shifting is moot, for me. I imagine that all 3 major component manufacturers will be fully wireless within 5 years, and then I may consider it. One of my new bikes has holes in the frame for wires, but otherwise not. As an engineer who spent many wasted hours fault finding on wires, I can say with some certainty that I do not want any of that in my leisure time. Anyone else holding off for true wireless with S and C, where SRAM already are?