What you say has some truth, but by itself it's not curative. Our vaccine makes other products work better, some of those products already come from BP's, in the future I suspect more will be developed or acquired by BP's. In short, as patients live longer, and ideally are cured, they will potentially spend more on products from BP, rather than spending less. Certainly some products which are used today may no longer be used if they have no benefit when using DCVax-L, but others will replace them in making the vaccine more effective, and hopefully leading to cures in many cancers.
Gary