The market has decreased since 2008, but him releasing two albums instead of one offsets that. Anyway:
-Janet is still being sampled AND copied by current artists (Tinashe being the most recent example), while people always cite MJ instead of Prince
-Janet is still being referenced by the current generation (everybody's bringing up the wardrobe malfunction since the Super Bowl announcement) while Prince is FORGOTTEN
-Discipline's first week sales > ART OFFICIAL AGE and PLECTRUMELECTRUM combined (first week and total sales)
-Janet ranked #7 on Billboard's all-time ranking, Prince was only #18
