Honestly, Zhang Tie didn't think that he could find anything valuable in that debris; however, after disguising himself as a pioneer for so long, Zhang Tie indeed wanted to find something valuable here out of curiosity.
It's good if he could find something; if not, it's acceptable. Actually, the course of excavating treasures was more stimulative to Zhang Tie.
Zhang Tie remembered that Donder always sold items in terms of piles. He usually put one or two valuable goods inside the pile of items. By doing this, he could always obtain an unexpectedly better marketing result. Donder said this indicated the pleasure of excavating treasures.
You might not be interested in it if an item was directly put in front of you; however, if you found it in a hidden place or get it by chance, that kind of happiness might leave you with a very deep impression.
