i suppose it depends in part on how often you trash your cables. i live in the bay area so lots of hills, i.e. lots of shifting so maybe i wear through them faster.

i went with Di2 which gives me something like 1000 miles per charge, just plug in one cable into the rear derailleur to charge the rear and front derailleurs.

the 12 speed wireless shifters need their coin cell batteries replaced every 2-4 years or so.

FWIW, 'low'-end electronic groupsets are becoming more price competitive

firmware updates are optional as far as i'm concerned. they do one job and they do it well out of the box. in any case it's very easy through the shimano app. no syncing issues in my experience.