The funny thing about you mentioning those two items is they are the epitome of supply constraint in local terms, and of course you knew obviously that when I was referring to Amazon = NPD I was referring to Hardware (and that's been every month since Jan = Amazon PS4 over XB1 = NPD PS4 over XB1.
MK8 is simply not seen on retail shelves. PS3 is also harder to find hot titles on US shelves due to it getting its teeth smashed in for most of the gen, terrible install base in the US means stores don't want to carry much.







