The $1.95M my neighbor got was to put his into Conservation for good.
The thing is, he still owns the land, can sell it if he wants, & can do all kinds of things, basically all of the same things he's been doing anyway. He's allowed to removes trees as he sees fit; so he could potentially clear-cut. He's allowed to hay. He's got 1 house + pool now, & the Agreement lets him add 2 more houses + pools if he wants. He's allowed to widen his existing dirt driveway ... to whatever width he wants! Hey, he might just decide he needs a 1,000' wide driveway.