Kiwi from what I have read here and on another forum is that even after seperating the metals from the platters the Pt still has to be dropped/seperated from the remaining metals that were on the platters. The amount of recovered Pt doesnt justify time and cost to get it. Maybe I am wrong but that is the opinion of people that have been in the refining business for a long time. But then again you know what they say about opinions.