all day today.

First off, not all generics will be involved. Some new ones are still very expensive and they won't be able to do it.

But for maintenance drugs like for blood pressure, etc...it will work.

Actual costs for things like furosemide, HCTZ, enalapril, phenobarb,
etc are really low. So they are going to sell them "loss leader".. that is make
no profit. Also their pharmacies are not very busy. As a comparison to
Costco, which with their lowest prices have become hugely busy.
(this I know from experience). In just one year, volume has more than doubled at Costco, and they are putting in new safety computers with better capability to prevent errors (very high volume leads to more errors and stress).
I just saw this system yesterday.

So I see this as a good thing.It will shake up the chains however, and that
should be interesting as well. But don't expect a drug newly gone generic to be included. Typically costs to the pharmacy for those can be as high as
80% of the brand. It will be interesting to see how this plays out, of if it
continues. I am all for it!