> Smart TVs are a good idea. Who doesn't want less crap plugged into their TV?

I don't. For the same reason I don't want all-in-one desktop computers -- the display is both a substantial portion of the expense and the part that gets outdated the slowest. So, I'd rather replace the parts that provide the content to display separately from the display.

I'd rather replace my Chromecast for new functionality than replace my TV.