Is there a reason album sales are down?

Was Nas right when he said Hip-Hop is dead...? I think Hip-Hop isn't dead i think the the industry has taken a 180 degree turn towards watered down club hits! Which isn't completely bad except that artists like Joe Budden DO NOT get recognition for what they do and a lot of underground emcees have no love from anyone even in there own cities! Then Nas released "Hero" which was an anthem for artists to give people a person to look up to and now the state of the country is in a lot of trouble. Do not forget that we now have the first African American president ever & a Democrat is in the white house finally so Hip-Hop needs to make a positive approach to the music! Please lets save Hip-Hop!