Yea, the pricing scheme is what's going to keep GNU and Cinch alive.
In terms of tech, neither GNU nor Cinch offers an advantage over the NX2. Buyers with deeper wallets were previously choosing those options over Flow because of the different tech. If these Flows turn out to perform as promised, I don't see GNU or Cinch offering an advantage (again, for buyers who aren't concerned about pricing).
Of course, as always, just my opinion. Fun discussion topic. Thanks for all the great sneak peaks so far! Keep em coming Wired!