DD once asked for one but when I queried her what she would do with it, she shrugged her shoulders, I think she just found it cool that her friend had one. But said friend has a smaller sister and can so watch programms the little one is too young for.
DD watches iplayer or Netflix on her laptop/tablet if she really wants but we are a fairly low-TV family so she normally has free reign of the TV in the living room anyway.
I grew up with a TV in my room but that was in the Eighties where you couldn't watch Catch up or streaming so if I wanted to watch something my parents didn't I did it in my room. Nowadays that need is gone.
We are also a no-game family, so no need for a playstation etc set up.