The only way to buy one will be after it's flogged to death teaching Rider's Edge courses.
The Buell motor looks better.
A quick comparison of the specs shows a jump from 34 to 48 horsepower, a nice bump in a bike this size. The Yamaha single, in contrast to the Blast, is fuel injected and water cooled while offering parts and service from your nearest Yamaha dealer, not a bad thing. According to Mac, the pricing is expected to stay the same.