The M4 was the first chip that tempted me to upgrade from the M1, which I think is the case for most people. At work, I’m at the mercy of the corporate lease. My personal Mac doesn’t get used in a way where I’ll see a major change, so I’m giving it a while longer.
I’ve actually been debating moving from the Pro to the Air. The M4 is about on par with the M1 Pro for a lot of things. But it’s not that much smaller, so I’d be getting a lateral performance move and losing ports, so I’m going to wait and see what the future holds.