It's the fact that most kiddies look for tight beats and think it's a classic. They aren't hiphop heads, their just on the mainstream bandwagon.
They don't look for storytelling, multis, comparaisons, not even the topic of rap. There's a reason why great Mc's like Mos Def haven't blown to the extent like 50 Cent did. Their shit is stickly for the HipHop heads, not mainstream kids.