I'm sure this has been already addressed, but haven't come across the thread so I apologize if repetition occurs. I am proposing a reversal of the materials exchange. I know I'm not alone when I don't like the fact that I have lots of marks and shards, but I'm stuck farming materials for upgrades. I propose a vendor to sell 50 of the materials for 25 marks. This makes the price of the reversal steep at 25 marks, but I think it would be good use for the people with lots of marks and not much to do with them except sharding legendaries. Any thoughts?