I've seen reports of results from these newer cancer drugs -- and some individuals see very, very good and prolonged responses from them. In any case is it the gov't that should decide? Or should you allow people to buy this treatment themselves, or allow them to purchase chemotherapy riders for their health insurance policies? It might cost a couple of bucks extra on a typical policy. (Similar to NHS, Obamacare's death panels will NOT allow paying that kind of money for cancer drugs.)
Once that S. T. dries up (and it will, regardless of whether conservatives or liberals are in power. You can't repeal demographics), these thousand-dollar-a-week drugs will not happen, because there is simply not enough of a paying customer base.