[sasawpg]

Index adjustment on SRAM AXS can be done on the fly from the shifters. Or from the app as you ride without stopping. Try that with cables.

The battery replacement is the real issue as technology gets older. Though to be honest, at some stage it gets more difficult to find parts for any system. I started to run into challenges sourcing several replacement parts for a 8-9 year old bike that had 10 speed Shimano group set, so it got sold and replaced. Batteries are not much different really.

[jjav]

> I started to run into challenges sourcing several replacement parts for a 8-9 year old bike that had 10 speed Shimano group set

I can't say I've had any problems with getting maintenance parts for my 2004 (19 years old) Shimano XTR mountain bike.

[runamok]

Barrel adjusters near the controls are a thing though not all bikes have them.

Example: https://www.amazon.com/Jagwire-Inline-Indexed-Tension-Adjust...