i gotta say, i'm a little annoyed about this as well...i mean, being able to buy mats, instead of having to grind planetside for them, is pretty cool, but i don't see why they needed to get rid of the materials exchange......i mean, what's someone gonna do, spend marks to get mats, to sell the mats, to get marks? you'd be spending more marks than you get back. i mean, it could be a faster way to Velveeta your faction rep, but honestly, there are so many other ways to get faction rep, that it would be utterly retarded to do it this way. there was honestly no reason to get rid of the exchange....both could co-exist... i really wish bungie would put it back.