I think two platinum album in less than 8 months is a great accomplishment, his WW sales are also pretty good considering that his most successful album "FutureSex/LoveSounds" only sold like 10 million WW so i think 4 or 2 million for each of these records it's phenomenal, more impressive, if you think that both albums are far from being commercial, Combined, he has the best selling album of the year worldwide.