Apparently (based on comments here in the past) a lot of people would prefer to pay more at TRU than import, because it is easier and more reliable. There is still a limit though, like with Ghost Starscream, and even still people would rather skip it than go to the hassle of finding one online and waiting for it to (maybe) show up... and then not have the ability to exchange it when the inevitable QC issue is found.
In the end TRU will still order in items that should sell, to someone... and if it causes their frontline staff grief, the head-office doesn't seem too worried about it.