[Jon]

They've quite often used vote to save on the celeb version going back to the C4 days (CBB3 I think)

Voting to evict leaves a pretty good chance you’ll end up with the biggest stars leaving first.

It did turn out quite well for the civilian series though in the end. Something I’ve thought about is how every housemate made a big impact at some stage of the programme. So the casting was spot on in the end. Not sure how that compared to other series of Big Brother but having 16 house mates for just 6 weeks paid off in the end.