Be realistic. Are you going to stick with the same manufacturer? Or try something else. Or maybe going from cruiser to sprtbike or vise versa.

I am pretty satisfied with the Suzuki, they make a solid bike, I think in the near future I am going to upgrade to a newer model GSXR 750, BUT that is all, no larger than a 750! I have never ridden a liter bike and don't plan on in anytime in the next 25 years!