Check out the state schools in your own state first. State supported schools are usually cheaper than private schoos and/or for-profit schools. And while not all state schools are wonderful, most are of reasonable quality because their mission is to serve the people of your state. (Some are of excellent quality.)
Many state schools offer a reasonable education at a reasonable price at a location you could reasonably drive to if you wanted to set up a meeting with a professor. Before you invest in a program located half-way across the country, check out what is located in your own state first. You might get a better deal.
You might also ask some of your colleagues where the went. It can be an advantage to know somebody who completed a program recently. They could be a resource for you if you ran into questions or problems.