No one on the 41 would admit to only producing 210 watts.
So don't get one. Next.
The funny thing is I actually do get the desire to get away from electronics - I'm a software tester / dev by trade, and I do things deliberately to avoid computers at times.
I played around with a Di2 shifter on display, and the nice thing is just there's no more giant arc to activate, there's no chance of mistakenly brake vs shift (happened on my old Ultegra 9sp).
Problems would be battery, and it's not easy to get the right button feel.
In any case, stuff like that is way out of my pay grade. And if I want to go on bike tours, I'd go for mechanical setup any day.