Your
If you have no online reputation, potential customers will find it hard to trust you, and to properly value your services. It goes without needing to be said (but I'll say it) that if you have a bad online reputation, they most certainly WON'T trust you.
But if you have a 5-Star reputation, they'll do more than just trust you.
They'll demand you.
They'll pay a premium for you.
Because they know that the experience they get with you is WORTH the premium price.
Why else is a $1 cup of coffee worth nearly $4?