I agree it's too high for many of those items. They could have the choice of selling more items for less, or selling less for more...
I suppose SE prefers the cash wales to the majority of players. :/
And don't get me wrong, I bought most of the items of the mog station. Only since 2 months I stopped, the pricing is going up and up and up....At one moment, the players need to stop buying to force SE to keep it at an acceptable price.