You'd need a monitor, speakers, and a webcam. Each with their own connection cables to the computer and everything but the webcam needing wall warts for power.

You'd need a monitor, speakers, and a webcam. Each with their own connection cables to the computer and everything but the webcam needing wall warts for power. There's a value is reducing desk clutter. It may not be the main reason to pick one monitor over another but it definitely has a value to some people.