[scotty79]

1. I think I never seen any claim that inventing new drugs gets less expensive although I agree that's theoretically intermittently possible untill the fact that we are running out of substances to try overcomes cost benefits of given technological breakthrough.

2. If something gets constantly more expensive it will eventually become unreasonably expensive for any chosen definition of unreasonable. Unless general wealth of human race grows faster than cost of research which doesn't look plausible.

What I'm saying in the end is that the cost will be higher if the company is involved because companies are so risk averse that they demand insanely high potential rewards to take the risk. The other thing I'm saying is that if you are going to fund reserach with drug sales but in the end will have to subsidize drug buyers from taxes (because they can't afford meds) it may be just better to fund research from taxes directly and charge for drugs only as much as their manufacturing costs as it is now in case of generics.