OK, I am sorry but I am going to believe the distributor on this one and not some guy trolling the forums. you are correct that it is not made at the WT factory by bill, since there is no factory. however, WT is printing a dust cover box and providing the dust cover packaging. maybe it's a canadian thing, like how some cars in the US don't have heated seats but in canada they come standard.
I've only listened to one side of an album on the GTA and I don't hear any difference.