Are the DT Swiss ARC 1600 worth the splash?

Hi Folks, found these as a good upgrade to my canyon with 11s. They have 15000 km on them and look decent. My question is, are they worth the 600 bucks?

Would appreciate your opinion! Cheers!

https://www.kleinanzeigen.de/s-anzeige/dt-swiss-arc-1600-50mm/3042696513-230-9504?utm_source=copyToPasteboard&utm_campaign=socialbuttons&utm_medium=social&utm_content=app_ios