I see there is a nice boost in vial purchases after the rewards started and people saw how much they were. I like how you broke them down. I already purchased 5 of them before the rewards started. Right now, I'm debating internally if I should buy more or not. I am also thinking in perspective about the time pack will be opened and rewards will be distributed based on rarity of the items, if you open the vials (and more rewards will be for the opened vials than unopened ones). On the other hand, there is the cost of the healer(s) to cover in the future.