Is there a reason Apple ought to drop the price of Flash storage? Is Apple failing to sell their Flash-equipped products? Wishing for a lower price doesn't work very well so long as enough people are willing and able to pay the prices Apple charges.
I find it amusing to read all these "spinners are dead, Apple's so far behind the times," posts, when Apple is probably closer to having an all-Flash product line than any other mainstream computer maker.
A GB of HDD still costs a fraction of the cost of Flash, so regardless of how anyone feels about having a spinner in their box, spinners in entry-level PCs are not going away anytime soon. Some people will still choose capacity to speed (minivan vs. Mini Cooper).
I'll also note that, to judge by forum postings, the vast majority of the "spinners are dead" crowd have fairly large external spinners attached to their systems. Just because it's outside the box doesn't mean it doesn't exist.
The HDD makers are still bringing costs down, driven not by the desktop/laptop PC market (which is shrinking anyway), but by the cloud server market, so I don't see the gap in price between HDD and SSD to narrow dramatically any time soon.