I would like to buy an eletrisch height-adjustable desk and as an accessory is often offered a cable channel.
Does such a cable channel make sense? I have the following things on my desk: monitor, keyboard, mouse, phone, laptop, speakers, lamp.
If you do not want cable clutter, then yes. If the cable salad is not your thing then no.
Yes, a jumble of knotted cables just looks messy and unattractive and you just have more work with it.
Dear kutefrake, of course that makes sense with all your electrical appliances. There's a distinction between horizontal and vertical cable routing and cable entry (in the tabletop). Multiple sockets, chargers, batteries etc. Hidden better under the table.