I like the clean look of no wires, who doesn't?
Everybody who rides an electronic group set is going to run out of juice once. I live in a hilly city, my FD stopped working, and I knew I had a limited number of rear shifts left to get home. That motivates a person to be more on top of charging their battery.
It's a remote chance, but with SRAM you have four batteries, two you charge, two you try to remember when they were replaced. Internal routing already looks pretty clean, I think having one battery for the entire system is better than having that last bit of clean. But somebody else less prone to stupid anxiety can see things differently.
Anyway, there will for sure be cool stuff in the next generation. My last bike has external routing for mechanical shifters and rim brakes ... 2 years in I'm still smitten.
For that price, you can get another bike when the next generation comes out.
