Amusingly our insurance's captive/preferred pharmacy wants to mail us the generic for $40 + 25 S+H instead of us buying it locally for $150. Except that they can't climate control the shipment and it's 20F over the rated temp of the inhaler here today, in the shade. So their in house pharmacist allowed an override.
Still a royal PITA.
The prisoners were receiving as much as $10 per inhaler, funded by a family on the outside that couldn't afford the inhalers at pharmacy prices.
I'm not sure it's ever been looked in to, but having seen it first hand, I can tell you there's a whole hustle for people on the inside trying to get prescribed expensive drugs in order to supplement their meager existences.