Thanks but that's strange! I stumbled upon a listing ^{[with more pictures]} on "Kijiji" that specifically mentioned those were used mining rigs!
^{- The listing in question, was posted a day prior to "your post [OCT 4]".}

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If someone was going to buy any of those, they would've overpaid by around $567 to $2970 ^{[assuming that these were the rates for the new/used mining rigs (I do know those prices are outdated]]} for each miner!
^{- I don't want to point my finger, but it doesn't look good.}