Don't ever stop doing exactly what you're doing. You've created a marvelous portfolio demonstrating your skills, and employers can look at those projects and understand the caliber of developer they're about to give lots of money to make cool things for them.

Also, sometimes the joy of a project is just bringing it to completion, for personal satisfaction. Passion projects can be just that! They don't have to make money. If you are going to make money though, and you're pretty sure you have a solid idea, perhaps reach out to someone with marketing skills to help you get the word out. If it's not your strong suit that's okay! You keep doing what you're good at, and let someone else shine at the tough stuff.