Land owners realize that its not the house that has value, its the land it sits on. Houses can be torn down for far less than you could spend remodeling, but they aren't making more land.
That would require developers to come in with bucks (which they need to borrow at interest rates that make the whole thing economically fesible, so they can make a profit).
And, also, lawyers to get the proper zoning changes, and compliance from members of the neighboring communities, etc., etc.
Then state and county municipalities have to have the tax base to begin to put in proper roads, sewer systems, water access, build schools big enough to hold all the new children and enough books to educate, etc.
Increasing the tax base is what this current housing boom was all about, that and some GREED

through in as well.
If you like the property, look past the house part, even envision the house you would like sitting there.
Especially in THIS housing market crisis, people paid way too much for these
'houses' and really didn't get any/much land. A lot of people got sucked into the idea that bigger was better, even though they couldn't afford it, nor needed all the community amenities it came with.
The land is what holds value, housng styles change, as do building materials, and especially technology in home building materials,ie., energy effiecient heating and cooling systems, insulation materials, siding materials,
etc., etc.
But, it really is location, location, location.
Try to look past the older house, and think about the future.
What seems far out of town today, could be QUITE different in ten years.
When we bought our farm in 2001, we were 'Way' out there, and then, 'BAM', this housing boom happened, and all you heard about was this area we live in.
But, luckily it didn't quite get here, though, the developers tried their hardest to make that happen, we were still just a little bit too far away

.
But remember that, and think if its where you want to live in 20 years if things had kept going the way they were??
JMO, but if you like the land, it could be worth the extra $$, even if the house isn't your dream home.
It could be your dream farm one day

.
Good Luck, RB