[2023] Armory Calculation is off , by afew calculators

Yes, the ships are more expensive than usual if you are buying them 'straight up' with one resource. However, the whole idea behind the event is that you can use any combination of resources, including credits. It seems fair to me that players can use whichever resources they'd like to get a 'discount' on the ship purchases. It's also the first time I can recall that resources have been directly convertible to others (except steel to coal, when buying coal items).

Respectfully, I don't think that's a valid comparison and I don't see it as a ripoff. You can use essentially every grindable resource in the game in any combination to discount the price of the ship, up to getting it for free. I think that's more than reasonable given premium ships are often money/doubloon only, or available for only one resource.