Well, there are 3 distinctive markets for idns, there are "flee market" flippers from china (particularly so for chinese idns), there are american or european flippers (these will sell with asking prices like 10-100 times the former), and there is the drop catch market.
IDN buyers are spoilt - we mostly go for prime generics and commercial terms mostly - it's not like ascii ppl go for typos, trademarks, and other junks.
Out of 20 chinese or japanese domains on sale on forums or that drops i am interested in, i usually get only 1 - because the other 19 are too expensive or others took it first.
How much you have to pay will depend on where you buy your names, and how willing you are to walk away if the price is not correct. If you are one of those that play Snap, and you are determined to win all the time - you'll end up paying $xxxx to $xx,xxx even a name, and also get the honor of getting your purchase announced on DNJ.
k:
That being said, the market for IDN is very different from ASCII - it is more sophiscated and complex, and if you don't know how to play it well, you might get pissed off like Domainengineer frmo DS. :lol::lol::lol: