If Bungie wanted to make customers happy, they'd put exact prices on everything and let the customer choose what to buy and what to ignore. Flaming wolf mask, 400; ghost-ghost, 200, bat-spawn potion, 10... Eververse purchases are just a disguised form of gambling; the goal is to extract as much money from you as possible. I'm honestly surprised that the ESRB doesn't flag this in game ratings.