I read this on twitter and it kind of changed my perspective on developer time.
Time and again we are told to ship fast, do work faster.
But if spending 2 hours of dev time saves 200ms each time some action is performed.
Assuming that is performed over a period of time, that collectively adds up and actually
you're saving potential hundreds of hours over a period, that in itself is crazy.
So yes, developer time is overrated, spend more time with your code to make sure it's absolutely efficient.