I think a better discussion (and shorter) would be where are the good roads? Certainly not here in Mass. The bridge expansion joints rattle everything loose in the RV. As with California, monies collected in "road use taxes" on fuel are diverted to some other purpose, like hiring a state senator's BIL to work at DOT and then hiring someone who can actually do that job.
I thought the roads in Florida and Texas were nice. In Texas, we were on a 2 lane road (US 59 towards Shreveport I think), smooth as glass and the speed limit was 70. In Mass it would have been 25 or 35 mph.
Here on beautiful Cape Cod, they spend millions on bike paths and zero on roads.