Parts-pairing is also rampant in #PoweredWheelchairs, a heavily monopolized sector whose predatory conduct is jaw-droppingly depraved:

https://uspirgedfund.org/reports/usp/stranded

But if turning phones into e-waste to eke out another billion-dollar stock buyback is indefensible, stranding people with disabilities for months at a time while they await repairs is so obviously wicked that the conscience recoils.

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Stranded

When you rely on a powered wheelchair to get around, any delay in repair imposes a burden on your mobility and financial security. It can even become a matter of life and death. Yet, as “Stranded,” a new report from U.S. PIRG Education Fund found, a constrained market for wheelchair service and repair in the U.S. makes delays, of weeks or even months, common. 

U.S. PIRG Education Fund