Someone suggested that the Roadster handles better. I don't agree, but YMMV.
I like the Touring best because in my view, the Touring is the best of all baggers. So when I want to ride a bagger, like when my wife wants a ride, or when I've got stuff to haul around, nothing beats the Touring.
When I want to go like a bat outta hell, in my view, the Roadster is not king of the genre. My preference is for the ZX14R or Hayabusa.
They are both HUNDREDS of pounds lighter, and ultimately get more power to the rear wheel. And both are cheaper too.
If you want the Roadster, a very heavy straight line specialist driven by a very powerful triple, nothing else will do.
But anyone who tells you that a bike this heavy is for serious sport riding, they're pulling your leg. Not even Triumph pushes this idea. Everything about the Rockets is about the engine. There is nothing wrong with that.