Definitely something I'd like to get sometime.
The PlayStation Vue would get me most of the Cubs games. Not sure how it would do for Cardinal games though.
I think Fox Sports Midwest is included on PS Vue for Iowa subscribers. FS-M is the Cardinals channel.
Off topic but I would love to switch from Sling TV to Vue but it doesn't seem like Vue is available on Roku yet. Hopefully by football season it will be and I can make the jump.