Does buying an AP actually help with getting allocated another piece?

[bmaier]

I got my first AP, a 38mm RO chrono, last year at 24. Ive been in contact with my SA for a few months about getting a 15500OR or 26393NR and was told neither are available nor will they be for some time. They kind of just shut down the whole idea of being allocated a piece anytime soon which led me to my question. I know purchase history is what matters for non celebrity folks but how am i supposed to build one when they wont/cant sell anything to me?