I think Monster product (original la not clone) are overrated, there is a lot of cheaper alternative, for example the Superlux or SoundMagic product, I myself have the SoundMagic PL50, it's the cheapest Balance Armature (BA) IEM I could find, and the SQ almost the same as the RM500+ BA IEM out there, of cause if you have the money, can go for Shure, Audio-Technica, Beyerdynamic or others high-end brand that is, in my opinion far better then Monster (original not the clone one).

I know why Kyo watch Avangers 5 times, all with different chicks!! hahaha..