I got a 10 acre woodland lot in vermont for 22,000 which I love. It's on a mountainside but gently sloping. sugar maples and southern exposure. Trees are perfect size for building and its on a dirt road. Cant hear highways and the air is so clean. If you buy something far out there it will cost less money because it has less value to the idea of mainstream society but the bonus is that you get something totally pristine and away from pollution. So best of both sides, as long as you don't mind being a way out there is a great way to go about looking for a property. You can find even less expensive land. I like to have little debt on my land so I need less money and can put more time into my own land.
One thing we were able to do on the purchase we made was to trade some of the timber on the land for a lower price. The seller harvested about 30 acres of trees which we needed for our pastures and food forest while lowering the price to us. This was a win-win. We still have 90 acres of trees so we can manage the use of the rest of the land while beginning immediately to use the cleared portion.
What about owner financed land? We have cheap land in many states (nothing out west at this time).
We have 40 acres in Missouri that is non-restricted for lease at $995/year. You can lease it year after year. You can camp, build, garden etc. We'll even break it up into payments if need be. The only restriction would be no cutting of the trees.