Honestly don't feel like a slight reduction on a month long battery life is of much concern. As for waste, I'd say being able to replace a dead battery should reduce waste if anything, also nobody said it must be a AA (on a side note, you seem to imply the use of non-rechargeable AA, which holy shit, if they're still a thing, must be purged, sweet jesus...who's dumb enough to waste money on em???). Personally, I'd much prefer having a second battery charging separately somewhere, ready to swap, as opposed to being forced to stop using my computer. Or like the Nintendo Switch I mentioned before, have some spot I can put it away for charing, that way the mouse is also cleaned up and not fucking dangling and wobbling around freely on the table.