I have to agree it seems a complete waste to remove the Materials for Marks exchange. I can get Materials on every planet. they're just lying around for anybody to take. Marks are hard to get. I was hoping to see some kind of economy system in place sooner or later. A "Trading House" were we can exchange one of the economy items that we have for one that we don't. There's just too many currencies in Destiny; Crucible Marks, Vanguard Marks, Upgrade Materials, Ascendant Materials, Exotic Materials, Glimmer, Strange Coins and Motes of Light. We need a commodities exchange where we can trade what we have for what we need, and let the market dictate the value of each item.