I wanted a Buell. I love the concept. However, the first three (in three different dealerships) wouldn't start. The fourth did, and it was a great ride (albeit with a really hot right leg...). First, I couldn't overcome the fact that 3 out of 4 new bikes wouldn't start. Second, I asked about extended warranties, and they wanted a fortune for one (in comparison to Kawi). This is a really good indicator of what they think is going to occur. In contrast, I don't find the S3 as cool, but still really cool. I have ridden several, and they are also a great ride (maybe the best low speed wheelie bike ever). Plus, all of them ran well.
Note, the extended warranty for my 919 was 1/4 what they wanted for the Buell warranty, both warranties through the parent company.