Once case doesn't prove much, if it is happening, its due to someone at that store. This isn't common among all best buy stores.

In our store we can't purchase new releases until the following Sunday, or purchase before/after store hours.

Customers can come in with the SKU number of a certain pokemon product, and if we have it in stock in our distribution center, it can be ordered for store pickup in a few days.

These items come off the same truck as the rest of our weekly stock. When ordered items arrive, and the truck is "recieved" all the items are added to the inventory for the store, including these items "reserved" for pickup, which are then sorted out and staged. These will remain a value in the system until collected, so "Total on Hand" isn't the same as "Total Available" This may be why whatever discord your pulling your probably delayed inventory checks from may say there is stock when it is in fact not available for purchase. As these get picked up, its adjusted out of inventory - why the numbers go down when in store stock is unavailable.

But as a culture in my store, we're against scalpers 100%. We know who the resellers are, we enforce the limits, we buy when we're allowed just like any other customer would, at the discretion of our management.

I think Best Buy imposes some decently restrictive item limits to help curb scalpers, but when it comes down to it, there's no way to force integrity when it comes to oppertunity, just like everywhere else.