Hello Hedgehobbit,
The 'Arc' product that was visible on the PS4 Frontier Store was a test product that should not have been live and has now been removed. To clarify, this is not indicative of any products coming, nor is it reflective of upcoming Arx prices, which we'll detail in the near future.
There seems to be a bit of lather over the quantities that points will be available to buy in, and the quantities of points the cosmetics will be available for sale in.
I appreciate that the numbers are almost certainly not tied down yet but I think some clarity of intent would go down well sooner rather than later.
Personally I plan to just earn the points in-game & anything I can get is just a bonus, I don't have a horse in this race.