I'm sure volumes have a lot to do with it, but I doubt it's the display that is driving the cost here. I recently bought a replacement 6" E Ink screen for my k

I'm sure volumes have a lot to do with it, but I doubt it's the display that is driving the cost here. I recently bought a replacement 6" E Ink screen for my kindle at it cost $30. This device has a 4" screen, not sure on the relative resolutions.