Syringes were fine for me, pens might be less embarrassing to use in public maybe?
The problem isn't their choice of insulin delivery, it is that there are no price controls and an incentive to increase prices without any significant loss in sales. This is an area that government need to be all over.
But you also have a tiny mass produced machine that is life and death for people. Insuring quality is expensive and the cost of mistakes is extreme.
If you want cheaper medicine you have to also have cheaper mistakes and there aren't many people arguing equally loud for both. (Just one issue of many)
Higher numbers for the previous two will increase cost and death to people who can no longer afford the treatment.
"Least likely" means infinite quality control and is not possible. Failure rate is not zero, you have to pick finite regulatory requirements and financial consequences for failure.
You have to assign a dollar amount to a human life. It is uncomfortable for many people to think big picture thoughts but you're contently using things made by people who have to.
But you do the best with what you have, and that means picking your pain.
The cheaper insulin in the US is garbage and should not be used. period. The problem is the companies are have no pressure to reduce prices. the customers are captive and must pay or die. They make money in other countries that have price controls on the same product.
Source: Type 1 diabetic.
https://www.youtube.com/watch?v=pC_0CI9jV6A https://www.youtube.com/watch?v=Bv4HIci1Qtc