If you use eight different email addresses to buy each bundle, then you get a glimpse of their A/B test for newsletter subjects: Got lots of "Introducing Humble

If you use eight different email addresses to buy each bundle, then you get a glimpse of their A/B test for newsletter subjects: Got lots of "Introducing Humble Indie Bundle 8" and one "Introducing Humble Indie Bundle 8: Name your price for seven amazing games!" and one "Lock, stock, and 7 smoking games: Humble Indie Bundle 8 is here!"