And some contain lead, apparently.
That is an interesting tidbit. I have not heard of plastics containing lead, but I don't doubt that it could be. Do you have more information beyond the statement above? If it is true, that would be a deal killer.
I just Googled "Utility Sink" and then at one of the sites it had a message about the lead warning. Maybe it was the Ace Hardware site... I don't recall specifically, sorry.