That’s a basic economics thing that doesn’t have an easy answer. But basically, at lower prices, people generally demand a higher quantity of something. Raise the price, and people start to think twice and consider other options. Supply is the opposite: at a higher price, more of a product will be produced (or in the case of pre-owned land, landowners are more likely to cash out). At lower prices, people won’t bother.

So in the case of land, price is affected by what people want, but also what’s available. If there is a lot of open space and that’s what everyone wants, groovy! But if people want limited amounts of tree land, prices are going to skyrocket for that and people will look at open land as an alternative.