iPad Air Wi-Fi + 4G LTE (First Generation)

Why is the 128 $30 cheaper than the 128 on the other listing.

Basically, why are there 2 listings for iPad Airs? Other than the memory size options what makes them different? Also, for some reason, description references the iPad Minis on these…

all sorts of confused…

Difference between the two is the direct vs 3rd part warranty.

UPDATE: Additionally, the condition on this model has been updated to say “Refurbished”.