Hi Diki - perhaps people here do know what they are talking about and I certainly do.

The thing about near field monitoring is that the wave reaches your ears before the environment can affect it - this is why it is imperative to audition (subjective) - but also remain objective (which is why it makes sense to gauge and evaluate others' opinions) - monitors that fatigue an engineer are a common complaint

genre may be less important than purpose - for whatever reason (I've heard many) for mix engineers, NS10s are hip hop mixing & everything else - I've been there - but one would have to buy used, they are passive and anyway they would not be recommended purchases today unless you were a mix professional.
http://emusician.com/tutorials/emusic_listening_monitors/
http://www.soundonsound.com/sos/jul05/articles/andrewcoleman.htm