Remove some duplicate charms for something else?

Why not remove some of those duplicating charms and add a bit more Auric Cells? So instead of getting 1,000 Auric Cells they could possibly add an extra 100, 250, maybe even 500 to encourage people to complete it more. That, and it gives you more for your buck too! Let me hear some opinions on this, I barely surf the forums so sorry if this idea has been said a million times