I am driving at something entirely different. Apple is currently stuffing huge sums of money into the coffers of a direct competitor. This is very far from being an ideal business practice. I can well imagine that many discussion around the big table at Apple are about how they can avoid sending billions to Samsung, which they in turn use to fuel their competition in Apple's most important product market. This factor is way more immediate than those glacially-paced lawsuits, which for competitive purposes, are all but meaningless.
That is actually a good point. However, there are at least two reasons why it doesn't really matter for Samsung who uses Samsung's capacity for 14nm (until at least 2017, where then the new 15 billion fab is ready for production, too, which also needs to be utilized heavily).
First, if Apple won't use up the capacity, Qualcomm, NV, AMD etc. will start to use it earlier, because Samsung needs to make money on it or either they can't finance their equipment, which is extremely expensive. Meaning that everyone will eventually use the best process for their high-end offerings, which is Samsung's.
Second, and knowing Apple, they already knew the price for TSMC's 16FF+ offering beforehand (since they always need to consider both semis) and they can surely dump the prices as low as they can be for Samsung to still make it worthwile for both companies. You could also spin it backwards and say that for Samsung, Apple is probably the worst customer they can get, because even when they may bring a guaranteed volume requirement, they are well known for the sheer price dumping methods and that is never an optimal position to be in. Without knowing how much Apple is paying Samsung, this is all speculation, anyway.
Apple knows that without Samsung, they will only have access to the second best, and they need access to 14nm to stay at the cutting edge so that Schiller has something "amazing" to sell to the crowds this and probably up until next year.
Let's hope Apple in turn doesn't just jump to new nodes, but also innovates, like they did with Swift and Cyclone. A quad-core Cyclone would be nice, but on 14nm there's so much headroom to improve IPC and go quad at the same time and still have lots of room for other improvements (image DSP, audio/video signal processing, security related stuff...). Also, don't forget that the M9 could also make use of 14nm, which would make it even more worthwhile.
The Apple Watch also really could improve drastically (battery life, idle power, more stuff that saves power directly integrated into the Watch SoC instead of using the iPhone as a remote device over WiFi/bluetooth, which is a total energy waste) by utilizing 14nm, which will probably be their 2nd Gen announced a year later. This is one of the reasons why I will stay away from the 1st Gen Watch. This will only bring the Watch to the masses, but the real potential can only be used with 14nm and beyond.