dual sport ain't so bad as along as it's meeting your current needs. you can always get another YZ or whatever down the road.
my exact thoughts, i mean jumping and flying all over the place on this light lil yz is fun, but a drz400s with some nice 90% off 10 % on tires and a couple power mods will suit me perfect! i'll prolly use it for a 3 mile commute to school and back every day except the winter