>A factory is used to create complex objects that need subobjects, etc. That's not the case here.

Would you not call that builders? To me a Factory creates rather simple objects. A build complex composite objects.



>>I'm not sure I follow you. Surely this is a classic use of a factory class:
>>Give me a blue car with red seats.
>>Give me a red car with a V8.
>>The factory gives you the car you want and it behaves the way you expect a car to behave......?