Sorry for the OP, but you probably represent a very small percentage of the population who plays the game this way. The shouldn't have gotten rid of the material exchange, but since materials are twice as easy to get now (if not more) they could have just nerfed the exchange and not get rid of it. To be honest OP, you're missing out on 90% of the game by playing strictly patrols. You probably represent 0.000001% of the population. Play the game however you want, but keep in mind that Bungie wants to keep a majority of the population happy.