Hoarding is one thing. Having 722 Raid Banners is... well... hmmm... Ok then! Did you actually wait until you had 8 stacks of them before finding out you couldn't vault them? If you figured out you couldn't vault them after loading up one or two stacks... WHY DID YO KEEP BUYING THEM??? I generally keep 30 - 40 on me and I use them as often as possible. I now know that if I happen to load up into an activity that uses Banners and I see that I'm matched with you... I'm not dropping a single one! :P