Do you like special colour schemes?
The Luftwaffe certainly seems to like 'em. All the kits available for German F-4s seem to have a special anniversary scheme of some description. None of them have normal line jets.
Would you prefer to build an anniversary scheme? Perhaps something with lots of tiger stripes, a Spitfire silhouette painted over the wings or a topless Amazon warrior on the fin. Maybe when building a US Navy aircraft, you always go for the CAG jet.
Or would you, like me, much prefer an ordinary drab everyday line jet?