We don't have to worry about a 51% attack no matter what our marketcap is (as opposed to auroracoin which just died because of one)
Um, Auroracoin didn't die. The dev supposedly claims that there wasn't a 51% attack, either. I didn't verify that part, but I did verify that it's trading like normal, so it's obviously not dead. (I don't know why someone would want to hold that coin, but that's another matter.)