The dm13 came out... so that is something.
But yeah, the NT wasnt a hot seller. NT10's had their problems and people didnt really take to liking of them. Although the issues were fixed with the NT11, i still feel like it never really felt as nice as a DM though.
SKI008 is right, if they were priced around the 800-1000 range i feel like they would have sold a lot better and people wouldnt have been so upset. A lot of the angry purchasers were simply mad because they spent 1500$ on them and had super high expectations. If they were priced under the DM then i feel the expectations wouldnt have been so high and people would have more inclined to feel like they got what they paid for.