I used to be in the bakery business years ago and when we closed the business ( just to many jobs )we sold off all of the equipment. The 3 door stainless fridge in working condition sold for $600.00. But it was well used.
Decent commercial equipment can always sell well. My buddy handles all sorts of restaurant, industrial and custodial equipment and he does very well buying at auction, refurbishing, if needed and then reselling. He knows his market
well and that's the key to making it work and not loosing your shirt in the process. But as stated above if it's scrap grade then do as they advise to get the most you can for it. Good luck.