Well, tell me something unique about the asari that doesn't involve melding with the others (sex, generally speaking) and isn't present in other species?
Edit: Sorry if I come too angry, just the notion of removing the quarians and krogans is baffling for me. I agree that the asari are the most fleshed-out race in the trilogy, they are simply not appealing to me in any sense. Javik's revelations made them even less appealing for me
This is something I was so hoping would be explained in greater depth during ME3 because I believe they still have secrets left to be revealed. In Mass Effect 2, Aria hints that she and her commando's used "certain skill her people like to downplay", which Shepard rightly interprets as playing dirty. Later, we see in Illium's bar that the asari dancer is able to make all the races present find her sexually attractive yet each with a different vision of how she looks. Mordin speculates that it could be a pheromone related ability but isn't sure.
In that same bar, Matriarch Aethyta's appearance changes after Shepard consumes the mystery drink. I was never sure whether this is because Shep is drunk, whether it is more to do with the ingredients of the drink (as I think I recall it only happening after that particular beverage) or if it is a response to something Aethyta is doing herself. Edit: I rechecked and it happens regardless of what Shep drinks. Is this a comical reference to the "beer glasses" effect, or a genuine piece of asari mystique?
Another thing that bothered me was Morinth's dialogue about Ardat Yakshi being the "genetic destiny of the asari." Even though her assertions are contradicted by Samara's logic about them being sterile, we can't exactly call Samara a reliable source. After all, didn't she claim there were only three Ardat Yakshi in existence, something clearly contradicted by ME 3? What with Reave acting like a vampiric ability to transfer life from victim to wielder and the reproductive process of melding with a partner, which in the case of Ardat Yakshis seems to make them stronger despite the death of the other, I almost want to believe they were intended to be space-vampires. They already have the long lifespan, but do A/Y asari live longer if they kill?7
Vampire space babes aside, I wouldn't mind learning a bit more on their sexually driven, neurochemical powers. It's almost as if their very nature is one of sexual predation. To analyse this in bilogical, evolutionary terms in much the same way as we have analysed krogan and turian physiology (the reason for the back up organs and exoskeleton in each race respectively), what sort of conditions or behaviours made the asari develop this way? They kind of remind me of black widow spiders. Did the proto-asari once have male members of the species but evolved beyond the need for them?
Interested to hear your thoughts.