The "M1" series processors are great but for one detail. The single core speed is nearly the same from the base M1 to to M1 Ultra. So most folks are working in the single core mode for boot up and basic chores. Many applications barely use three or four cpus.
So the bait is to get the most memory, one has to get the top cpu on offer.
So the M2 comes out and we see the same pattern for single core performance despite the wonders of the multicore models. There is less than a 20% improvement from M1 to M2 single core speeds.
If the M3 does not have a significant single core speed improvement, I will probably wait for M4 before scrapping my over $7,900 Mac Studio Ultra and over $5,500 14" MacBook Pro Max.