On some keyboards, like the HHKB, it really helps with portability. If you like to swap out keyboards a lot, having a bunch of keyboards with removable cables would make it much easier. I can see where you are coming from, though, if you tend to stick with one keyboard for long stretches of time. I have had my HHKB for about a year, I guess, and I plug and unplug mine a ton and have never had a problem with it. Like someone else mentioned, it also helps with pets that like to chew cables. Also, you can change out the cable with a longer/shorter one to fit your needs (something else I did with my HHKB).