Instead of having to replace the mag safe power brick for 85€ you can now just replace the cable for 55€.
However, it my personal experience, I've never had the cable fail, but I've had 2 mag safe power supplies fail (they started getting very hot while charging and at some point stopped working alltogether).
However, it my personal experience, I've never had the cable fail, but I've had 2 mag safe power supplies fail (they started getting very hot while charging and at some point stopped working alltogether).