Here's another way to see it:

The chests themselves are worth exactly the same, as they are identical. The contents, on the other hand, might differ.

Here's another way to see it:

The chests themselves are worth exactly the same, as they are identical. The contents, on the other hand, might differ.

EDIT: As some people have pointed out, this is an even larger stretch than before if one considers the title as well as the question itself. I didn't.