One of the biggest benefits of the cable machine is versatility. Essentially, they allow you to perform a wide range of exercises all with one piece of equipment that can target different muscle groups, including your chest, back, arms, or legs. You can use them for traditional exercises like curls and flys, or more dynamic exercises like cable crossovers and cable pull-throughs.
Another big advantage of cable machines is that they tend to be more space-efficient than larger weight lifting machines. A lot of commercial cable machines are quite big, but there are smaller options that are well suited to storage at home.