I can't believe nobody has mentioned the Ninja 1000. If you "absolutely love sport bikes," then I think you should consider the Ninja 1000 with the saddlebags, especially if you're considering a track day. It will be sportier on the street and way better for a track day than a heavier Concours 14 or FJR1300. It also happens to be more powerful and lighter than a VFR800 Interceptor and generally less expensive, too, both to buy and to maintain (no VTEC). It's a sport bike made reasonably comfortable. The 2017s and later have an IMU so you get angle-sensitive ABS and traction control. 2014-2016 get you the better bags and some engine improvements. I have not ridden the new ones with the IMU but I did get a day-long test ride on the previous edition.