I have ridden a few buell's with the belt drive and it made no difference riding. they are cleaner, quieter (like ducati owners want that
most dont even lube their chains so they rattle).
For me it comes down to three things
1. looks, just don't like the look of the fat belt and cog. Maybe if they sold gold colored belts.
2. gearing adjustability, since when has the factory shipped a bike with the gearing I want. never. I hear of BMW owners spending big $$ to change gearing.
3. weight, I could be wrong but that rear cog looks heavy. compared to a sprocket. I would like to see a weight comparison of the complete final drive including Idler pulleys. Adding weight to the wheels is the last place I want to put it. carbon fiber pulleys?