I think this rational is okay for selling things like a coffee or a mobile game but not for a service. If you're thinking of pricing this low, you really have to start targeting users that value what you're selling more or expand the product to solve more valuable pain points. If you've got a niche product, you're unlikely to sell a big enough volume to earn a living selling it cheap as well.

You'll lose the "no-brainer because it's so cheap" market by increasing prices but those customers aren't necessarily the customers you want.