Couple of points
What metric could you use to determine fair pricing. Fair to who? at what point in the game is it fair? What seemed just a dream at some point in the game, say for example 10,000 Granite. At level 70 is nothing at all. Just a few days to collect.
What difference do you think unlimited storage actually makes? I have for example 1,700,000 on the island, never mind star, and i know i am not alone. The numbers got silly long ago.