Japan only seems to care about Million Live/mobage idols and even Cinderella Girls is slowly fading into irrelevancy as the console idols already did. Kinda sad how quick to forget and replace these idol girls are.
As someone who routinely searches Yahoo Auctions Japan it's no uncommon in the slightest to see brand new scale figures of Miki, Haruka, Chihaya, etc. going for less than 500 yen plus shipping.