My biggest question is why the Air model even exists anymore. The extra £170 gets you, what? Magnetic charging for the pencil? The M1 processor is a waste of money as the A-series is so bloody good for this machine.
Idea: Do you have a young relative who could help test the new G10? Its fisher price colours and kids homework pricing would lend itself well to a child of primary school age throwing their opinion into the ring, especially if you got them to compare it to the G9 model as well. It would certainly be a nice change from the desk-sat benchmarks everyone else will be doing.
(If I lived anywhere near Northhampton I'd lend you my 9-year-old lad. He's tech-mad and would jump at the chance!)