Plus there's the tiny factoid that centrifugal force would have the people inside climbing the walls. Literally. The edge of the station would be the 'floor'. that huge Earth spacedock station? Regila I/Starbase 375? The Utopia Planitia stations? They are useless designs for the purpose of centrifugal pseudo-gravity. All centrifugal-gravity starbases would be cylindrical, and their decks would be arranged concentrically, like the age rings of a tree. Docking stations? They'd have to be on the centreline and the ship would have to match rotation (spin on it's own x-axis) to dock.
The space station from '2001: A Space Odyssey' is a centrifugal station. Babylon 5 is a centrifugal station.
Basically, while centrifugal gravity stations have their own design challenges, it is incredibly primitive. Plus, as MalaK pointed out, the rotation speed has to be judged. You can't have too thick a habitable section or the core decks will be too light. Or, if you aim the 1-g diameter in the middle of the deck structure, the outer decks will be too heavy. It is far more convenient to have artificial gravity, because all the points of reference that a human on a planet has are then duplicated in space. You can beam up to an artificial gravity station and walk anywhere absentmindedly. The decks on centrifugal stations are always curving. You get heavier the further out from the 1-g deck you go, and lighter the further in you go. To get to the central zero-g docking bay requires thinking in non-planetary terms.
It's just a whole lot more convenient for planetary-based species to dupicate their environs on starships and starbases. Rotation in SFB/C was to uncover firing arcs and hide damaged shields. In Star Trek, DS9 doesn;t rotate, neither does Starbase 375 or Spacedock. it's unnecessary strain on the hull.