I love my MacBook Air 15" M3 so much. It is large fast and light. While I really appreciate the improved M5, my main ask is actually a brighter screen. The current 500 nits is a bit low if you are ever not in a dark room.
Anyhow, because the differences between my M3 and the new M5 are just the CPU/GPU and I am not actually hurt much by the current CPU speed, I won't be upgrading.
I love mine as well... got it for $849 at CostCo, last year, in an astoundingly-awesome tax-free weekend sale, with 2%cashback.
Not really using it for anything demanding, mostly just listing to podcasts at night (the speakers are wonderful). Battery life is incredible. Screen mostly stays off, but is very clear — I can see the brightness being an issue if used outdoors/windowsun.
Anyhow, because the differences between my M3 and the new M5 are just the CPU/GPU and I am not actually hurt much by the current CPU speed, I won't be upgrading.