I'm happy with Ooma. The modem was about $125 from Costco up front. The ongoing taxes/fees are $4/mo. I use a 4-handset phone system throughout the house. I also pay $120/yr for the premium services, but I could see how those features are not important to many.
75Mbps internet only is $78/mo. Netflix/Prime/Hulu is $24/mo. We have a Roku 2XS and Roku 3 at about $180 invested years back. I have my own Motorola Surfboad modem as well. You could probably use Chromecast or Firestick for a little less. Any you'll probably want an antenna for OTA local programming. You can use
this site to find out where and how far away your local stations are.
$150/mo isn't too bad for what you get. I would incrementally add Netflix/Hulu and attempt to not use your DVR/cable box for a month or two to see if you can adjust.