The 23" Ultimate comes standard with this basket. (ETA October)
Some KK users purchase a second one so that they can quickly change between two different charcoals.
Example: Many users like to use KK's CoConut shell charcoal for low and slow cooking but use lump charcoal for grilling. Having a second basket makes changing fuel types quick and easy.
This grill is crafted out 11 lbs of TIG welded 1/4" 304 Stainless Steel