People are forever trying to discredit Rihanna's success. You cant deny Rihanna's impact. Just look at todays new/young pop stars. When it comes to album sales, Rih's numbers would be more impressive if she took the time to carry out each era. Example one being the Good Girl Gone Bad era. Its no coincidence that her most successful era is her longest, the one she took the most time on. Another is the LOUD era, her second most successful era and her second longest lasting one. Rihanna's albums could sell over 5 million each easily if she took the time. The fact that she can release an album every year and not burn out is incredible in its own right.