Could we ever see more Device Bondage Scenes Like these?

I was just wondering if the producers will ever do any other scenes like those done on Aug 9, 2010 or January 21, 2010? As I really miss seeing scenes like this and it gets boring watching these 2 scenes over and over again. Why wont you consider using fucking machines on Device Bondage anymore? Do the models just not want to do that or is there some other reason?