Can you account for how your ancestor obtained every acre of property he owned at his death?
In reviewing records on one ancestor, I realized I had deeds for all of his acquisitions except for 34 acres. Not a large amount of property, but in this case several deeds were within the family and tracking that 34 acres might be the key to discovering new family relationships.
And if it doesn't, then I've honed my research skills for a time when it does help!