I'm not sure why you go from "provides even less value" to "that 'even less value' < $30".
A $30/month SaaS app is usually paid for because it saves/brings value of $100+ per month to your tasks. A good editor easily brings more value to a developer.
Actually my comment there ignored "value" altogether, really. The value is irrelevant.
My point is you can't quantify the value or justify the cost in this way. Surely, a $40,000 Ford Taurus provides more value than the $100,000 broken bike, but that doesn't mean the Ford Taurus is priced appropriately for needs.
