Yeah, my buddies call me "retrogrouch." I don't carry any spare batteries when I tour, not even one charger.
One of my greatest pleasures on a bike tour is getting away from the phone, and I just can't imagine carrying one with me.
Another of my great pleasures is not knowing what's ahead of me, and making decisions on the fly and see what happens.
There are plenty of free internet computers in libraries in this country, sometimes twice a day.
The only "new gadgets" I carry are LED lights, which I think are the best revolution in bike technology in my lifetime. LED lights allow me to go on tour (in a developed country) with no spare batteries, with 100+ hr battery life.
Toe straps and running shoes, multi-purpose clothing, 21 speed steel frame bike, all pretty retro.