Whats the advantage of using the Tufnut as the securing device?
Lowest-cost approach. The Tufnut replaces a higher cost padlock, and is best used when your equipment will stay in the same place for a long while. The Tufnut is installed with a wrench, and requires a hole somewhere in your table. Some people don’t have the time to do the installation, or don’t want to drill into their furniture, which makes it more reasonable to use padlocks.