What you've just said about wire management and ganging options draws attention to another important issue. Glass Very important. In addition to giving you flexibility in the area of options, legs are key factors in determining the ease and reliability of table assembly. This is especially significant in facilities where tables are frequently set up and taken apart. Leg construction also plays a role in maintaining a system's aesthetic appearance.
Many systems handle assembly by using snap-lock devices to connect legs to tops.
While this method is functionally effective, it's not particularly cost-effective. Another solution employs a set of machine screws and an Allen wrench. This approach provides flexibility, economy and a good deal of structural support, particularly when the screws attach to tops via threaded metal inserts. You also touched on appearance in the context of a table system's legs. The material from which a leg is constructed has a critical influence on its appearance.