Looking from New Zealand, the
supersale promotion is: up to 70% off select titles (not many to choose from) +
spend $50 and earn 5000 bonus super points.
Any ebook purchases from 18-22 Feb count toward the $50, not just the select titles. That is an extra 5x points a VIP would normally get for spending $50, so I think this might be a good time to get a few of the non-discountable books that have been sitting on my wishlist.