Kind of like convincing people to buy iPads when they already have laptops and cell phones (maybe even an iPhone). What do you think? Is there a point to having so many different PCs? Also, convincing people to buy an updated version of the same product each year.
Also, you've got to make sure curing cancer would be as profitable as the various treatments now available. This may be, as horrible as it is, the determining factor for many drug companies.
Don't forget about ACTA! http://youtu.be/yQ56UNL5zeo
United States, Australia, Canada, Japan, Morocco, New Zealand, Singapore, and South Korea have already signed this treaty. I don't know much about it besides what they said in the video.
At this stage, basically they're just trying to sell us stuff we alreedy have. Interesting to see the transition from machines that do everything (PCs, laptops) to specialized devices like this.