Now, one could suggest that I change my plan to a non-high deductible one so that I don't have to keep that money sitting around in savings, but then my costs per month would go up $300, whereas my high deductible plan is entirely paid for by the company I work for. I don't go to the doctors nearly enough to that the extra money I spend per month would counter-act the amount I am paying out of pocket now because I never reach my deductible.
* Low-deductable insurance is inherently more expensive.
* The difference in premiums between low- and high- deductible insurance gradually funds your HSA.
* When you're young and you start your HSA, you also happen to be actuarially less likely to need the money going into your HSA, so it grows to cover your deductible (or, the savings gradually displaces whatever you deposited to start your HSA; whatever).
In the presumed common case, your deductible is fully funded by your HSA which is itself fully funded by the difference in premiums over a few years. That's all money that would simply have been remitted to your insurer if you had a low-deductible plan. The high-deductible plan leaves you better off.
(There's also the more meta point that health insurance exists to keep you from being bankrupted by e.g. appendicitis, and not as a cost-saving plan for routine care.)
http://www.rand.org/health/projects/hie.html
Unfortunately, we never repeated the rand experiment, so it's a bit dated. For some reason we never tried repeating it before pushing massive changes in the law.
The RAND health experiment studied 30 measures of health. Two of them were statistically significantly improved - vision (due to free eyeglasses, p=0.001) and blood pressure (p=0.03).
Simple math shows that 0.97 ^ 30 = 0.4. This means that the RAND experiment had a 60% chance of showing an effect in at least one particular submeasure even if there was no effect in any of them.
(The result on eyeglasses is strong enough to avoid this effect, however. So we can conclude that free glasses help people see better.)
Converting to high-deductible is a problem if you're living at or above your means and are approaching middle age. But presumably regardless of your socioeconomic status, if you're just starting out in the market, given the choice between high- and low-, you're better served with high-.
If you don't have an emergency fund (~$1000) and a few months of living expenses saved up, please try and do so.