Here's a reminder: I was answering this: "they've made HIV a chronic condition rather than a deadly disease, but I'd still like to see it eradicated with a vaccine." note: HIV, no cancer.

There is an incentive to sell drugs for chronic conditions. Curing these conditions would cut into the profits for selling drugs for chronic conditions -- I hope it should be hard to misunderstood -- it is just a simple math (lifetime customer for chronic condition vs. a single purchase for the cure).