Is 1mg Propecia as good a 5mgs Proscar cut into quarters?

Merck manufactures both medications, and they are the same except for dosage. Finasteride also comes in generics for a fraction of the cost of Propecia. For example, Costco sells a year of finasteride (generic) for $30, while some other pharmacies charge hundreds of dollars for the same drug. Compare the 5mg Proscar to the 1 mg Costco generic and then talk money with us.