Re: Prices listed are for broadband only device & plan
Cricket and MetroPCS have a joint roaming agreement and other than a couple exceptions do not encroach on each other's markets. The Chicago market is Cricket, therefore MetroPCS roams primarily on Cricket in Chicago.
For example: New york LA Miami Dallas Atlanta are metro pcs
Chicago Houston Baltimore/DC Portland St. Louis Are Cricket
They both have several more markets than that. I just used those to illustrate. They could merge and have very little overlap (mostly in the philly area and vegas).