I mean sure, if you offer me hours/days more of battery I'm not going to turn it down but for me (and my lifestyle, which is not yours, I get that) I don't need more than ~16hrs. Anything longer than that just helps "catch" me if I forget to charge. And that right there gets to the crux of why >24hr batteries rarely matter to me. The only battery charging processes that work for me are either:
* Every day
* Only when it's dead or I know I'm about to use it
With my Pebble I would regularly find it dead because I lost track of how many days it had been since I charged it and I'd have to charge it at an inconvenient time. I fixed this by just charging every night. So since I'm already in that habit, a longer battery doesn't do much for me. And in case you were wondering what types of things fall in the second category for me, it's things like USB battery packs, flashlights, smart house sensors that aren't wired, Airtags, etc.