I disagree completely, if you could trade marks for different ones it would ruin the balance of the game. People could easily get more than the 100 mark a week limit. Also why would you want to trade marks, it makes you false. People can look at your armor and tell what type of person you are based on your armor. Also farming for materials was not pit away lol. I farm for materials all the time because 1 in every 7 chests will give me 10-16 material from that planet. It is easier to farm materials than it used to be and a heck of a lot faster than buying them. Stop complaining about how Bungie made the game. The game is perfect and extremely fun to play