$75 prices out quite a lot of people.
What I'm seeing in this discussion is that the developer market is pretty price-sensitive, possibly because they're paying out of pocket and not charging back to clients or expensing.
Fair enough, there might not be as many people ready to pay for a font as I imagine.
As for the price, it's entirely to the discretion of the maker and it's impossible to determine what the value is for the customer, so I'm not judging that.
It does price out people from lower purchasing power countries and people who are short on cash (hey that's me). But as you mentioned, it's very possible that a lot of these people would rather use a free font.
I'll save this one for when I have more disposable income :)