Basically go to goodwill and have a look at their used stainless pans and then compare that to what you see at the store. Its not magic material. You put some tomatoes paste or salty beans or vinegar on it and you'll be getting some chrome dissolved on to your food. Great! Its just a little right? Wrong! What else do you see? Scratches! Every time you use a metal spoon or steel wool to grab food or clean the pan, you create brand new unreacted leachable metal chrome...pans are probably grade 18 or 316 stainless steel, so 18% of whatever shavings you made becomes happy trivalent Cr-3 ions floating around with your tasty Na and CL lol. Look at pans that got overheated or pans where you accidentally left a spoon before going on vacation for a week...they're black where some food was left on the surface due to oxygen depletion. Stainless steel is by no means the savior. Its the magic bullet, along with plastic in the food processing business! Processed foods pass thru churning mechanisms...metal rubbing and shedding stuff on to the food.

This is why I sleep at night. I'm basically a walking FEMA disaster zone, yet, I still somehow get to my 8hr enslavement work and then back to my rest of the day 2-3 hours worth of family disfunctions just fine.