Many individual test strip sellers in markets across the U.S. are frustrated by price fluctuations. Many will call their local test strip buyer and will arrange for pickup only to be surprised that the price may have dropped for their brand. The courier will then explain that the regional or national buyer has dropped their prices.
OptumRX is one such major player in the market that affects those local transactions. Upon further read of the article attached, there is both support and condemnation of the move.
The takeaway is that for the local seller, there really are factors involved that affect price.