On the final day of DRMs before Champions: Power (after what feels like endless runs), I finally got my first Volcanic Stormcaller weapon box. Had I sold it, I'd have got 800g for the shield I chose. If I want the other 15 weapons for that Mastery point, then the current TP cost is 9,000g more. This. Is. Broken.
There are some great suggestions for improvements in this thread and others. If Arenanet again drags out the second instalment with miserable rewards, over-long instances and dull bosses, then I fear for the game. What's the point of a new expac, if half the player base has gotten bored and wandered off?