That's funny ... I'm about to order West Wing season 2, and this turns out to be the perfect $ amount (give or take 90 cents) to be *my* filler.
Actually, when I checked out yesterday, it told me I was pre-selected for a free trial membership for Amazon Prime, which would mean that my every order would ship free regardless of whether I made the minimum. I think I'm going to do that. You should see if, during the checkout process, you get tabbed for that as well.