The point of commercial software shouldn't to satisfy the need of their developpers to get paid for it but to reach that intersection where it is useful enough

The point of commercial software shouldn't to satisfy the need of their developpers to get paid for it but to reach that intersection where it is useful enough for many users to accept paying a decent price for it and allow dev to make a profit. If that intersection is unreachable in the first place, there is just no sense to mention maintenance costs.