Land prices.

[AtTheMurph]

If I could rent land for $140/acre I'd move back home and farm. Our ground currently goes for $225-$275/acre.

You can do that in Wisconsin. I lease my land for about that price.

 

[DustyHWV]

On the south plains of Texas it goes for about $100 for irrigated but you’ll lose your rear growing cotton and peanuts, never mind Milo. And there’s not enough water for corn, even if it didn’t get to hot during pollination.