They represent an idea and image of AP and the watch industry in general. The market is fickle, really. The 15300ST, 15400ST, and 15500ST are superior in tech and performance as a watch and an evolution of the series BUT they do not have the history, images or charm of the 15202ST.
The JLC based 920 caliber in the 15202ST, VC, and original Nautilus is more robust than you would think. I just think you were unlucky with yours. I have played gold, squash, and tennis with mine without a hiccup π€·ββοΈ
There is no rhyme or reason to collecting or what determines market forces and values.
The heart wants what the heart wants π€·ββοΈ