Same here, hence why I kept my Samsung Galaxy 5 and now only pay $55 a month to Verizon as opposed to almost $90. Roku is no different, I'm enjoying free TV for some stuff and only $45 for Playstation Vue subscription. Not to mention, I did the same as you, I have my Free-to-Air antenna setup and get 31 local channels.
My internet is more but I've got some blistering speeds for all of my stuff. PS4, Roku, desktop + laptop and phone all on-line at any given time.