US households still have at least one VHS, Hi8, 8mm, or MiniDV tape sitting unprocessed.
Derived from US Census household estimates and consumer-electronics adoption-rate data for the camcorder boom era (1985–2005). Roughly 40% of US households of that era acquired a camcorder; a substantial majority retained the tapes through subsequent moves.
Source: US Census Bureau household data; CEA historical shipment data; TapeSave estimate.