To the original Q - I battled this same thing myself, I felt (still feel it a little) too old for a sportbike. I bought a V-Star, which for a cruiser is a nice bike. It was funny enough to ride, but my heart was never into it.
I've since sold the cruiser and am back on my true love, my R6.
Maybe down the road, I'll do the cruiser thing again.
For the record, I am 40.
