No its doesnt cost a good farm for a sword or a few villages for armor, seriously, how could that even be? Like seriously think about that. Forget links or references lets just think.
I just love it. Forget historical records, lets just think. You'd have made a great philosopher "Forget opening the mouth and counting the teeth, lets just think".
You have no clue about medieval times, do you? Your smith goes to the supermarket, gets ingots of the right metals needed for the steel alloy, heats them in his induction furnace, monitoring his array of termocouples to insure proper temperature as he adds each additive...
And he churns out quality swords at the rate of one per week which he then sells for farms...
Or maybe forging a sword is an inexact process in which temperature is judged by color, and additives are guessed at by adding 'secret' ingredients, and smithing itself requires an expensive setup which has FUCKING nothing in common with a farrier's forge, maybe heat treat is guess work, and sharpening requires expensive, easily worn equipment that need multiple people to operate, maybe a master smith and his dozens of support people produce a number of swords, on which most are too brittle or too bendy...
And then, maybe he sells it for gold coins... or maybe no, he actually just works for someone who can actually afford a longsword, and who owns the fucking swordsmith's equipment, and who holds the allegiance of the smith and all the apprentices and those who carry the wood, charcoal, and coal (all needed at different times) and those who grind, and polish, and work the leather, and why the fuck am I telling you this when you do not want to learn from 'references' and just want to think?
No, you philosopher! It cost the man commissioning the sword the same as it would have cost him to add a farm to his holdings for his liegemen to work. And no one but really rich people could afford the full armor, and that meant heavily landed gentry.
And the story repeats itself in every culture I know about, with two exceptions I can think of, both of which used different technologies, and produced swords inferior in very important ways.
Whatever. It's one thing to say "realism does not matter to me", it's another to spout about 52 farms per year, conjured by your amazing powers of reasoning...
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Oh you're the same ignoramus who accused me of being racist against my own ethnicity, and who talked about how "Europeans adapted to Mongol archery". I am mildly amused by armchair historians who know just a little. I despise people who refuse to even learn the little that's easily available and not even considered controversial in academia.