I’ve never understood them either. But then one of the motivations for taking a career in IT was so I could automate repetitive tasks. Little did I realise at the time that a whole industry would form around that basic motivation.
And this mindset leads you down the path of repurposing a 3d printer into an SMD piece-n-place machine, and spending 2-3 years of your 4 week project timeline getting that working properly...
:-)
(I would have totally paid $300 to get that done for me - even if it meant re laying out the pcb files to make it a practical "one big board with 2400 components, with a bunch of weird routed slots" task.)
