I wonder, in the long run, how sustainable something like this is in the long run. Take food, for example - one can go without it, or eat nutritionally poor stu

I wonder, in the long run, how sustainable something like this is in the long run. Take food, for example - one can go without it, or eat nutritionally poor stuff for a few weeks, probably without major effect. But it seems like optimizing for money means it will eventually take its toll - and that could lead to problems in the long term. (A single copay could eat half a week on this system.)