I had a unit that I couldn't get anyone to buy, no matter how low a price as the smell of cat urine was so strong with you opened the door it could have knocked you over. There had even been a litter box moved with the household items and it was still DIRTY!
I finally got someone to buy it for $1.00, just to get it cleaned out. Inside, they found 5 mint condition first run Elvis Presley trading cards sealed in plastic sleeves. He sold one for $350.00 and got a little over $100.00 each for the other 4 on Ebay. $749.00 to clean out a unit....not so bad.
