Exactly. Their ONLY virtue is convenience. Either you're there for a prescription and buy something because you're already there, or you're just looking to do a quick stop. They're basically a glorified convenience store that happens to have a pharmacy attached. Their prices are high, but they do have convenience on their side. You don't have to walk across half a mile of parking before getting to the front door. You don't have to walk into a giant warehouse store that corrals you into shopping in a giant counterclockwise loop. Walgreens does have the convenience option over shopping at a big grocery store.

And this is what is so bone-headed about these locking cases. Again, their ONLY advantage is convenience. If they're going to slow things down by putting a bunch of barriers between me and the things I want, I might as well just spend the same amount of time, go to the full-sized grocery store, and save some money.