I retrofitted my 2010 Specialized Roubaix Expert with Ultegra Di2. I sold the brifters and derailleurs on Ebay; so, the total upgrade was a reasonable cost. The Di2 never needs adjustment and it was fun and easy to install. I will never buy another mechanical derailleur. My other bicycle has an 8 spd internal gear hub and a gates belt. I also will never buy another internal combustion engine now that I have my Tesla Model S. I guess you can figure that just because I am old doesn't mean I don't embrace change.

I was so impressed with BluesDawg's experience with his beautiful carbon fiber Expert. He set a great example of somebody embracing change after resisting it. I typically don't resist it - I embrace it.