Well, its because its not easy to catch on...A little to heavy for general public. The fact is that NLOTH is brilliant. Most of the people I heard (and I red similar posts here on this forum) didn't like it at first, now they all say its great. When I first heard it, I also didn't like it. It was like I bought a wrong album. It has to be played few times to get connected. Can you imagine a non-fan to buy an album that has to be "studied" before and then decided: I like it, like it not? I can't. ) Today is all in boobs, legs, cloths, and songs with "f***, "s***, left me, cheat me, kill me" words in. To listen that, you really don't have to have brains, so people usually leave it at home.