I have an 05 DR 650. I use it every day for commuting 40 mi/round trip. It is a great bike. Mods I ahve done to it to make it more my style are: heavier fork springs, heavier rate rear spring, FMF-Q silencer, homemade rack, M-60 ammo cans as luggage, Utah Sport skid plate, Farmer john lights up front. I like the Bridgestome trailwings on road, but off road they do not bite. The seat is a little narrow for some, but i have gotten used to it. I get about 45mpg. It used to get 56mpg, but they are set way lean from the factory. I have also filled the handle bars with lead shot to take some of the vibrations down. All in all, I love it as a commuter bike around the Baja-like roads of boston. Now worries about pot holes, man hole covers, curbs, shopping carts... just roll over everything.
For 5k sticker price, it is a tough value to beat.