My M1 MacBook Air is insanely fast and the battery life is easily the best I've ever experienced. If the M2 is anything like the M1 or better, I agree, these things are going to make Apple a nice chunk of change.
I couldn't find any info on this, is this the same Magsafe as the 2015 devices, i.e. can I use existing old chargers? If so then I might even consider upgrading just due to this (I also have a 12/24V Magsafe charger).
24 GB RAM would be nice compared to 16 GB currently, but it's not something I'd really need.