  Motivated by recent studies of supersymmetric black holes, we revisit the
phase diagram of AdS black holes, whether BPS or not, with particular emphasis
on the role of rotation. We develop BPS thermodynamics systematically and, in
many explicit examples, we study its striking similarities with more familiar
AdS black holes, as well as some differences. We highlight an important
fugacity that preserves BPS saturation but is not captured by the
supersymmetric index.
