What's your commute like? Miles & traffic?
During the summer, I am a semi-retired college instructor and don't commute much (except for damned academic meetings). Fall and spring, I have a short 12 mile freeway or residential road commute and my WRX is perfect for either. I have not felt the need for more power/noise or other motor mods, but I'd like to improve my mileage to that EPA rated 71mpg more regularly. I tour on the bike, too, and mileage would be more important there than power/noise.
I have not ridden a more fun motorcycle since I was 20-something and raced 125 two-strokes.