Definitely fun, but do keep in mind the amount of noise that generates and keep it to a minimum when within a mile of people. I used to live on a rural road with like six other houses, and people going 100 down a 35 with houses does get kind of old.
I have my favorite empty county roads. No houses for miles, great visibility. I prefer going to the south and driving on old banked mountain roads, though. Most people can't even get to the speed limit safely on those.