I would say it's a huge price for something able only to display PDF files.
I understand this is a premium product, linked to a designer object, but this is probably not enough to become a mass product. I am not sure that Sony wants this either aggressively promoting a product as an elitist totem keeps the price (and revenues) high - unless this concept would be copied by the archenemies.

In my opinion, this would be another item in the Sony's Museum of Unfortunate Inventions (along with MicroMV, MS, Digital8 and the like).
You forgot the MD (actually awesome but another failed product).
And since iPhones (and other iProducts) are made in China, how come the amis still got them?
Because they ship them in containers rather than fly them in individual Fedex packages?
I've read gone through a short textbook. I'm noticing a bit of slow down when I highlight a passage with the pen if it is a couple of lines. It takes like a second or two for the full highlight to take effect. Also the search feature is a bit slow. It can take a few seconds while it searches for the next occurrence of a word you are looking for.
I got a very strange battery problem, sometimes one full charge can go for weeks, but now and then battery may drain itself and shut down overnight, any one having battery issue?
Unbelievable. For such expensive reader, the battery drains so fast. If the battery died, that huge investment would be gone.
Actually, you can ship electronics with LI batteries installed as long as they meet the requirements.

http://pe.usps.com/text/imm/immc1_014.htm
Does anybody know the maximum memory allowed for the micro SD card. I tried a 64gb one and I get errors. I don't have any other sizes to test

Thanks in advance
I'll have to double check but I believe the maximum is 32gb.