When I bought my i62HD there was a promotion code in the page [1] (SHIP4FREE) with which the shipping from ereader-store.de to US was free. Is has disappeared now :S But you can ask in the Onyx forum...
I have bought my Boox on Booxtor's store and I'm very happy with my decission. He is an active member of the forum and publishes periodic firmware updates.
[1]
http://onyx-boox.us/