According to some discussion in BYC forum, store with pointy up should keep the air pocket not grow too big (evaporation) compare to storage with pointy down, If not plan to put in to incubator in next few days. biggest air pocket mean less space for embryo.
So, whether the eggs for hatching or selling for eat or selling for hatch, storage in normal room temp. or fridge. I always collected the chicken or duck eggs with pointy up position put in to the eggs tray right away, then sort it out later.