The food, chocolates etc are to induce customers to visit frequently and become familiar and comfortable with the place. If you remove these soft purchases how will you attract initial customer attention?

Minus the high-tech end of this, it already exists - or used to. Small towns still have real pharmacies, some of which only sell medications and related items. Some have expanded to include greeting cards, toiletries, small gifts etc. Most of these small town pharmacies offer call-in and delivery service.

What makes them work there (besides that everyone's parents, grandparents, etc went there) is that they're full service and convenient (close to home). In a larger city, you'd need them every few blocks. Since Walgreens is already every few blocks, and you can call in or renew your meds online, this would be a hard push.

In addition, most health insurance companies have mail-order pharmacies that don't have retail space and so their costs are very, very low.