Like Google the Humble Indie Bundle has now reached critical mass and is nolonger niche, so they dont have to depend on their niche customers to make a profit now. They have grown and this is now the result, expect more big name bundles tied with drm and a single OS platform (Windows) and less cross platform Humble Indie Bundles until perhaps its completely phased out, however dont expect this to happen immediately probably over the next five years if they continue to grow.