I had a 60s kitchenaid and it was super loud, possibly over 90 db. Additionally, it had square corners where stuff got stuck, couldn't handle some solids well,

I had a 60s kitchenaid and it was super loud, possibly over 90 db. Additionally, it had square corners where stuff got stuck, couldn't handle some solids well, and to wash it you often had to remove the blade and gasket. One interesting thing was a gimmick about heating soup with the blender using solely friction. I eventually bought a modern plastic refurb which has been a dream. I do think it is a shame that it won't last 50 years.