The upgrade pricing is still straight robbery. It's $400 to go from 8GB RAM / 256GB SSD to 16GB RAM / 512GB SSD.
The M1 Macs really just continue Apple's traditional pricing - the base model & price is fine, but the upgrades that you're almost certainly going to want are ludicrously priced and oh hey all the user-upgradability (or any post-purchase upgrades) was removed would you look at that what a total coincidence.