You can see some of their pricings at their blog~~
http://ameblo.jp/lands-of-eden
Not like, Valentino expensive, but not cheap cheap. They're on the higher end of the average Japanese designer brands it seems.
With some of the things I can see it adding up really quickly...I mean, you guys know how Ayu buys. She'll see something she likes, and then buy multiples in like every possible color, and maybe just multiples just because lol