After researching every pipe out there and weighing cost to sound and features, I went with Scorpion. IMO I think it sounds and looks the best and is 600 with no tax or shipping. It's a European company.
One deciding factor was it's popularity, or lack thereof. I didn't want a pipe that everyone else had and how I felt about V&H. I didn't want to go to an event and be one of the other 65% of people with the same pipe. Price is another thing. I think charging over $1,000.00 for a slip-on is a rip off. I remember back in the day a Yoshimura slip-on cost $350.00 for my Suzuki. Now slip-ons are $1,000.00? Part of having money is learning how to spend it wisely, and I won't spend $1,000.00 for a slip-on muffler. Especially if it doesn't even get rid of the resonator (Ahem, Akrapovic)