Outside of the TVs with Roku built in I wonder how many people will buy Roku devices in the future. It will be hard for Roku to continue to compete if they have say, 10-20 percent market share.
I use a Roku now, but I don’t think I will in the future. My tv is older, so no built in apps. Roku was a cheap way to add that functionality without a big box. With that said, I am regularly disappointed with the performance of Roku especially with Plex. I am considering an Apple TV because I know IOS devices work well with Plex and there is a more robust app ecosystem available.