I see what you're trying to say but. smartphone is used a lot more by a lot more people. to most people it's the most important device in their life
So is the TV for some people. Also with phones you only need one & the old one becomes mostly useless to you but now with all the multimedia apps on consoles they can be used all over the house as STBs.
PlayStation Vue & Netflix will be good enough reasons for some people to have multiply PS4's in their home if they want to go out & get the new one when it come out.