Storage unit 240 contained the antique clocks. Within it were piles of boxes. At the doorway, there was some raw cowhide. Many treasure hunters were willing to venture a risk for it.
Raw cowhide wasn't cheap. Such a large roll could sell for at least a thousand dollars. And the wooden boxes in it had been arranged tidily and wrapped meticulously. They obviously contained something valuable, or they wouldn't have been kept so carefully.
Considering all this, the storage unit was worth quite a lot.
The fact that Hans and Li Du were determined to get it just emphasized its value. The other treasure hunters only knew that they had gotten information on the antique clocks from Andrew. But they didn't know how much information Hans and Li Du had.
So when Hans and Li Du bid for the unit, the others would definitely bid along with them. With the boxes and the meticulous packaging, one could easily guess what the boxes contained.