Re: @Andrew O
It's about Apples failed deviation from the usual release scheme this year, i.e. release flagship, discount last years flagship. Instead they discontinued last years flagship (X) and released a larger but inferior* handset (XR) and made it only slightly cheaper. Apple have finally realised that idea was not working out for them and have reduced the price $300 to make it a more viable upgrade for 6 and 7 owners not stupid enough to pay XS money.
What Apple can't do anything about is the size of the XR, which does not appeal to many 'western' 6 and 7 owners. It occurred to me in September that the only way to get around that was to put the X back into production, its size is acceptable to this group. But that would make the XR even less attractive unless you like phablets.
*see Apples handset comparison site