Hikaru is argubly the easiest one to find on the internet. (as for me I found her in a local comic book store, odd huh?) Fuu can be found pretty easily as well, but she is a tad more expensive. Umi is pretty much the hardest to get for she does not pop up that much, not even on ebay. And when she does appear expect a almost triple digit price. Now for me, I still want the limited Edition Primera, and the lowest I found for THAT one is $75.