I've yet to go to WDW, so I don't know whether the cages for Pick a Pearl are in fact identical or are made from real sterling silver. Anyone getting one should look for the 925 stamp. Without that, I would assume these are the same ones from China.
If they are real, the price makes more sense. However, I'm skeptical because the designs appear to be completely identical. I suppose it *could* be the same mold. It's hard to know.