Smart TVs being a good idea, all depends on who you are.
It's good for TV manufacturers, because old TVs get older faster (outdated processor / software and so on).
For consumers however, having a separate box for the "smart" part of your TV is much better, because it makes it easier to upgrade.
Personally, I prefer the dumbest possible TV. Most of the time, I don't need a new panel, all I need is an upgrade of whatever smartbox I'm using at the moment. So far my Chromecast is carrying me quite well. The biggest upgrade of my TV I'll be doing in the near future will be an upgrade to 4K and/or maybe OLED down the line.
It's good for TV manufacturers, because old TVs get older faster (outdated processor / software and so on).
For consumers however, having a separate box for the "smart" part of your TV is much better, because it makes it easier to upgrade.
Personally, I prefer the dumbest possible TV. Most of the time, I don't need a new panel, all I need is an upgrade of whatever smartbox I'm using at the moment. So far my Chromecast is carrying me quite well. The biggest upgrade of my TV I'll be doing in the near future will be an upgrade to 4K and/or maybe OLED down the line.