 What does removing price barriers mean for readers?
A price tag is a significant access barrier. Removing price barriers means that readers are not limited by their own ability to pay, or by the budgets of the institutions where they may have library privileges. While every kind of OA removes price barriers, there are many different permission barriers we could remove if we wanted to. But it removes a major distraction by allowing them, if they wish, to focus on what is likely to be true rather than what is likely to sell. It’s a payment structure we need for good research itself, not just for good access to research, and it’s the key to the legal and economic lock that would otherwise shackle steps toward OA.
 Readers are not limited by their own ability to pay.
 Readers are not limited by the budgets of libraries.  Readers can translate and redistribute work.  Readers can reuse literature for scholarly purposes.  Readers are not limited by their own ability to pay.