I actually think Spoetniks concern about NXT's distribution is the most valid concern I've heard about the technology thus far. It's also why organizations like NHZ stand to make a foothold in the market because they are NXT... just with a more egalitarian distribution model. Whether that is enough to erode NXT's current lead remains to be seen but the distribution probelm is a valid concern. Not because I think they will collude to do a 51% attack mind you (because in that regard it's a lot easier to get two mines to collude than 16 anons) but rather just because at anytime a big asset holder can theoretically crash the price at will, if they suddenly decide to vacate the market. A scary proposition for anyone holding NXT but at the same time not a coffin nail in that A) if one of the big 16 holders did that they'd be shooting themselves in the foot financially and B) the technology would still have the same efficacy meaning people can enjoy the benefit of being able to buy NXT super cheap during that period.

So while I think the distribution question is a valid question, it's not a deal breaker for me personally, at this time.