We're lucky in Arizona to have a pretty good bit of 66 left. I think that you need to keep in mind that, while the actual road is gone, the sites along the route are still pretty cool! You can retrace the route, but not the road, and see historic and unique stuff. The little bit from I-40 south of Kingman, AZ over the hill to Oatman is a perfect example of why the original Mother Road was replaced! Imagine that curvy, uphill road on a 100 degree day in your '31 DeSoto and you'll see that the folks who went west during the dustbowl years were true Adventure Riders! Try searching Amazon for "Route 66" and you'll be amazed at the number of guides on that little two-lane.