Other stuff who knows tho most of the crafting stuff goes into better stuff for making combat **** also not everything gets an upgrade ships are rarely used by high level people who can just move faster or fly or teleport or so many other crap. Ships are for your clan and people who are weak but most of the crafting stuff that isn't only combat related is mystic lands and also once again not all skills are equally made afterall crafting level way past 5 would let us actually make weapons that could be close to legendary but ships are for "weak" people of your clan and also for prestige it is like having a lot of property and also for making you an income I don't expect much innovation there the point is even a mortal man can make those blue prints so yeah it isn't the peak of what an Cultivators skill can achieve that said it is redundant like many things would be so I doubt our mc will get to make something new that said Lunargoth mc does talk about Rocket lol but it could be for lols.It's like, where do you go from being able to write ship blueprints at craft 3 though? Build a functioning death star at 20?