I believe its a matter of personality and personal taste.
Some of us get the upgrade itch and wonder what a new improved product will do. Like many other power cord manufacturers, not all of the newer power cords are necessarily an improvement, however, if you upgraded a power cord to a higher level it could create a quieter background allowing more details come through, or widen your soundstage. One never knows until they try, and if you are happy, save your money and enjoy the music.
Some of us get the upgrade itch and wonder what a new improved product will do. Like many other power cord manufacturers, not all of the newer power cords are necessarily an improvement, however, if you upgraded a power cord to a higher level it could create a quieter background allowing more details come through, or widen your soundstage. One never knows until they try, and if you are happy, save your money and enjoy the music.