Genealogical Jackpot

Has anyone ever hit what feels like the proverbial genealogical jackpot? I feel like I hit it today, when I found a deed for my ggggrandfather. I knew his birthplace, North Carolina, and his death place, Sevier County, Tennessee, and thought that he moved directly from North Carolina to Sevier County. This deed, though, clearly identifies him as living in Cocke County, Tennessee, an area that I would have never even suspected him of being in. I'm dying to get to the archives again, to start tearing through their records in search of more. Thanks to deeds, I suspect this ggggrandfather of having two wives, but I can't put proper names to them, or figure out where they might have died or have been buried. Thanks to this one deed, though, perhaps I'm closer to an answer.