Mostly it doesn't pay to process individual lumber. If it's near a property it may have metal in it, and it's likely wood you can already find at a nearby lumber yard. If it's a particularly beautiful large tree, you have a use for slabs, can rent a skidsteer/forklift, and don't mind waiting a few years for it to season, it can be worth it. Or if you have a hankering for very large boards of unusual wood.