Well, I haven't lived anywhere but the rural west in so long I can't really make a comparison to other places. However, in the rural west it's often not a priority due to budget constraints. Places with small populations and tax bases just don't have the money and many don't see historic preservation as a legitimate function of government (the rural west tending to be populated by folk with a strong Libertarian bent). We saw that play out locally when our historical society lost it's county funding (which the county could afford back in the days of a strong timber economy). At the time they owned a number of buildings that they maintained, one housing their museum. It went up for a vote and continued funding got soundly defeated; the museum was closed and the building sold. If it's a choice between schools or vital services and maintaining some old buildings the buildings lose out.
There's also just not as much in the way of physical historic things - e.g. buildings - out here as there is in many of the old states. That, of course, varies from place to place but it's generally true in the mountain west (the southwest, of course, having been settled way earlier). Thus, I don't think preservation is strongly in the mindset or tradition of many rural westerners.
The historic cemetery where I volunteer is a good example, too. It's owned by a city (itself one of the best preserved old west towns existing - but almost all privately owned) but they barely have enough money to keep the cemetery in operation much less maintain anything. All the maintenance - including most of the grounds maintenance - is done by a private volunteer Friends organization. We've also put up several structures, signage, and do all the preservation and restoration work on the markers (which is what I do). While the town is a tourist attraction and it's old buildings - and the cemetery - are a large part of the attraction it's still a very small town and people aren't willing to pay a lot of taxes. They're currently having a hard time keeping the fire department in operation.
Maybe it's the same in eastern rural areas; don't know. It's certainly been the case in all the places I've lived (three western states).