sockrolid

AppleInsider said:

While Snap didn't provide exact numbers in its results, it did admit to making just $8.3 million in its "other revenue" category, according to TechCrunch. Dividing by the Spectacles' $130 pricetag gives a figure of 63,846.

And, by the way, Snap lost $2.2 billion last quarter.  Yes.  Billions.
The stock dropped 25% yesterday on the quarterly report, as you'd guess.

Source: http://money.cnn.com/2017/05/10/technology/snapchat-earnings/index.html

Let's not forget that Softbank purchased ARM Holdings this year, for $32 billion.
This is the same ARM Holdings to whom Apple pays the "architectural license" for the rights to develop their Ax system-on-chip (SoC).
I.e. Apple pays ARM for the right to sell their own custom Ax SoC that run ARM's ISA - Instruction Set Architecture.
Costs Apple less per-chip and lets them build faster, more efficient SoCs than if they licensed ARM's "reference" SoC design.

So yes.  Makes sense for Apple to invest in the company that owns the IP for their (current) bread-and-butter computing hardware architecture.