I can't think of a good reason why a removeable power cord would be a better option than one that is permanently attached. I also can't think of a good reason why a replacement removable power cord should cost almost as much as a buying a replacement tool that has the power cord permanently attached.
Most Europeans have much smaller spaces for woodworking than we have, typically a garden shed or one car garage, sometimes a bedroom in an apartment. Many don't have table saws or big separates like we do. They also place a huge emphasis on portability and dust collection.
They are much more into "system" woodworking like what Festool and Bosch offer. They are big into multi-function tables where they can use a track saw to rip and crosscut, then simply take the hose and cord off one tool, grab another tool, clamp it down, and continue working.
They don't have to unplug their sander from the dust extractor, plug in another tool, maybe put some velcro around the hose and the new cable to keep things organized, and then finally getting back to work. Changing tools this way takes 10 seconds.
It might seem like a little thing, but it's annoying. I use my Makita track saw with my dust extractor. I'd guess the cord is 8' long. In order to rip an 4x8 sheet of plywood, I have to drag the DE over to the workpiece and even then if it gets hung up on something I might have to shut down my cut halfway through to swing the cord around. The other option is get out the extension cord I had to buy precisely because the cord is too short, and hook it up.
If I had a Festool TS 55 track saw I could just plug it in and start sawing. When I'm done, pull the cable and hose, attach the Domino or whatever, and keep going.
It seems like a small thing, but Festool stuff has so many useful and time-saving little features that the cumulative effect is dramatic.