your right but I mean after you killed your neighbors, maybe you have 20 gold, a stone sword, and leather armor.So will you buy an iron sword or 2 pieces of chainmail armor?I'm only talking about a guy with full diamond armor without a sword and a guy with only a diamond sword. Nothing also, no other stuff.
The players are both decent, and they are fighting on a big platform. No void, just a normal fight between 2 decent players. I think it's safe to say the player with the sword is gonna win.
you are right but you should do that when a pro guy attacked your base and you know armor is just a waste of money and time and you buy a decent sword.