Falcon is correct. The D820 is North American, the D821 is for the rest of the world. The GSM/HSPDA capabilities are almost identical on both. It's only the LTE bands that differ greatly. Also the Play store will continue to be cheaper than us for some time. They're not the easiest product to source unfortunately.
Unfortunately there is no Play store here, so being able to buy it from coinsfortech is great.
Any news on when the order will ship? (Order #2845)