All the extras on the MY STORY tour DVD made it worth the price, which is why I think the tour DVD is more worth it
The album is too expensive for what it is, and the posters are probably why it's so expensive - hopefully when those are gone the price might come down, because it's not really worth the price. I'd expect to pay €40-€45 for a full album CD+DVD, really, not a mini-album. I can't buy on ebay, but hopefully either at CDJapan or YA will sell it at a cheaper price later on.