Not enough power to put the smile on your face you say?
I've ridden both the DL650 and the DL1000. I own a DL1000 and am quite content with it. Matter of fact the bike in it's present state of tune and gearing will light your fire, as I know it light's mine!
Please understand one thing here - I AM NOT DISSING THE DL650 FOR LACK OF POWER, NOR AM I SAYING IT'S NOT A GREAT BIKE. HOWEVER THE DL1000 DOES HAVE A LOT MORE POWER AND A HIGHER FUN FACTOR WHEN THE RIGHT HAND TURNS!
My DL1000 was purchased to commute on and it has done an extremely remarkable job. Regardless of expressway or backroad running, it is just a whole lot of fun to ride.
If you're interested in power, the DL1000 has somewhere around 30 more horses available in stock form. With some tuning of the EFI, about 10 can be coaxed to start working from 2500 to 4200 rpm. That's a great place for the added power.
Let us know what you think once you complete the swap out.