I bought an offshore boat that was a DEA seizure for cheap. It had been operated off the Florida coast and was nicely outfitted with nav equipment and night IR low vis dash lights (for some reason)
Every compartment held an inspection tag since it had been well swept and surprisingly the boat was mechanically well cared for with the exception of about a square foot of ruined gel coat in one spot where it had been tied up with no bumper.
I always dreamed of finding a big brick of cash tucked away, but never did.
It ran like a scalded cat and we enjoyed it for a few years but grew tired of putting $500 worth of gas in it every weekend. I had the gelcoat fixed and did well on the resale.
So, there are real deals to be found at those auctions, but the front-end sites selling information are a scam.