Imagine the cost of such weapons 3,000 years ago. They had to be the most valuable things owned by people and their utility was extremely high. Yet they buried these valuable weapons with the dead person probably so they would have them in the afterlife.
I’m always astonished that they couldn’t bury the dead with something decorative and of low value and keep the weapons for the town’s or the deceased relatives’ defense.
The man who owned it was what archaeologists refer to as “high status”. :^)