In the past land prices and income have been always linked, if farmers make more money they can afford higher prices for land or rent.
Now economics of scale are shifting some investments in farmland for farmers that have low operating cost or better margins that are competing for rental land bringing in higher returns for Investors resulting in higher land prices and land becoming uneconomical for higher cost/lower margin farms and they may not be able to compete leaving them unable to compete to purchase land or rent land.
Larger farms & younger well educated farmers seem to take advantage of scale & margins in farming that gives them an edge in economics to create better operating margins and be very competitive in purchasing or renting land.
Farms with optimal marketing, higher yields, managed equipment cost, educated labor, specialized crops/ cattle markets /grain markets leading the industry with their insight, management and innovation /leadership that can compete with the best in the world.
Ben