The Denon get sort of an Honorable Mention as it is outside the bounds with an unobtainable logic chip. That said and by all accounts, if it is serviced and maintained, it will last for years. But how many are not ticking time bombs by now is anyone’s guess. None of the vintage decks that are I n this thread are 100% guaranteed to be bombproof. All would require some basic maintenance to keep going.