That's a weird take. Almost nobody thinks a no frills todo app runs $150 at any scale. Except the guy who thinks a minimalist text editor is the same ballpark (and is right).

If it's more than a todo app, OmniFocus sets a price point: https://www.omnigroup.com/omnifocus/

Yep, $150. So not scale or age, cuz it is the granddaddy gold standard.