[ElProximo]

They did ask us.
In a real sense they 'ask' by presenting the program and then we answer with viewing.
It goes a little bit further too - they 'ask' by presenting us with products and services during that viewing. we 'answer' by purchasing them or not.

and having said that, it has 'naturally' run its course. That is not even a 'bad thing' but really just the cycle, the changing times, the arc of a creative idea. Its really amazing it went that long. 10 years is a very long time.
Some of the most creative amazing television series with the brightest writers will deliberately end a program at the 7 or 8 year mark so they can 'go out on top' and not ruin it with the inevitable decline.
BB could have done that last season. Going out at the finale of BB9.