Anytime a test can be made reliable and cheap it's a good idea.
Recently, Walmart put forth a HBA1C test for $9.50. Countless folks are now able to get the A1C without spending a bucket of money buying a doctor's tennis court, or BMW. We've seen as much as $480.00 for a A1C.
It speaks to a bigger problem in this country where we treat drug use / abuse, and often illness, in punitive and criminal way, and in a way that makes it impractical (way too expensive) for many (about 30% who are uninsured) to get the care they should.
Another example. flex89's Humalog U100 insulin is $108.25 in the USA at Walmart for 10cc. In Canada (from CanPharm.com) it's $28.25. That jug lasts 10 days. Now, don't tell me Big Pharm needs a extra $80.00 every 10 days to keep Logan alive. That's bullshit. I encourage you to watch the movie "Sicko."
Yet another example. Syringes, from med-ware.net are $5.25 for 100 count. In a retail setting, they're $30.00. Now, there's such a thing as a reasonable profit, of course, but, that's b.s., too. med-ware won't sell to just anyone that needs syringes, though, because they don't want hassled for doing the right thing. It's that good old Puritan thinking of restricting access. I.e., if you don't sell they can't get them, which, of course, isn't true.
Our medical system is INCREDIBLY broken.
There are some things that should be done for the public good, and not on the backs of our sick and injured. Medical tests, supplies, and care, is one of them.