It's not even that I wish this series was longer, I think now is a good time to end - because the housemates remaining aren't that good.
I just can't be arsed with CBB10 and then the producers and the public acting like BB13 never happened.
However, if this series still had people like Chris, Arron, Benedict, Caroline, Lydia etc still in the house - and it was still at it's peak? Then yes I'd love more weeks of it, no question about it.
But I think if it carried on and dragged out longer, it would suffer a BB7 effect - and go from being one of the best series ever.. to being dragged on with dire finalists.