I'm really interested in the new ATW for my next street tire set, but I'm at least a year or so away from being due. It appears they are the same tire as the ATP only with more siping. To me that's a big benefit.
If I'm not mistaken, the AT/W is only available in Canada. I had the same thought and looked into these a few months back. I suppose it would be possible have a set sent down or smuggled in.