It's possible that because she's in the ancient plane, among the planes, two are just like her current one—aside from exchanging ordinary items, she can't get anything better.
Another plane, however, is somewhat novel; it's the Machine Dimension.
This is an amazing world of robots, ruled entirely by machines. It's said there are still humans in the world, but they're controlled by robots and have become the lowest of slaves.
Regarding this plane, Ye Jiu feels it's very intriguing, yet she's afraid to trade lightly.
Whether one says she lacks ambition or she's timid and fearful, she genuinely doesn't dare to gamble. If robots have manipulated the trade process, if they're summoned into this world, the consequences would be unimaginable.
Moreover, she's already quite satisfied with her current life, so there's really no need to gamble.