One of the main benefits automation provides is time, another argument for automation is that it is seen as a way of future proofing your business, increasing productivity by minimising errors and enabling staff to undertake other responsibilities while your automated solution takes on repetitive or strenuous tasks.
There are many factors that play into the favour of automated production lines. Repetitive tasks involved with manufacturing can be mind-numbing therefore increasing the level of danger and repetitive strain, automation can remove these.