Because - the tenuous hold of the domestic market in many areas of our "game" is primarily based on the ignorance of the consumer, coupled with the fear of intimidation....I think the idea is something along the line of "You don't buy from us, you have no support - so you'd better buy from us!" I have NO problem with any reseller/distributor who chooses that strategy. It just means I have to be an "informed buyer" before I send my CC number!
Of course, it ALSO means that I better have a "Plan B" in mind...