youngbloodz had a fanbase before they blew up.
jin was just a battle rapper. and battle rappers barely ever cross over to sell units. plus, the people who would buy his albums download mp3s.
so that aint gon help
especially when your goal is like what....20,000 albums sold..at best and i mean best 100,000...
rough riders just figured with the huge asian population, they would back him and buy his shit like whites did to eminem, hence hella units (see: that 'speak chinese' song trying to pop it off)....but it needed way more promotion and videos and limelight for that to happen..