I sure hope so, but I'm not overly optimistic tbh. The market is basically considered medical, therapeutic devices. It is as you imagine, probably worse. It isn't easy to find prices directly, but the only way this range of vendors continues to exist in this niche market is to sell devices with the complexity of a keyboard for four to five digits. There is no competition worth talking about happening.

So unless very specific regulation takes place, I don't see standardized access to braille displays happening.