Strictly the reason I couldn't be convinced to buy a house built pre 1980's. I prefer all of the former owners to still be living.
That's not hard here though, the majority of our cities are 1970's to now and still building, we don't have as far back a history as the east coast. My husband is from PA though, his sisters old-ass house is haunted as shit. I don't know where we'd live if we moved there.