Starbucks: Stay with Sharpie

Starbucks has recently decided to stop using Sharpie as their permanent marker of choice. They are now going to use a knock off brand. If they are doing for cost savings reasons then they have missed the boat as Sharpie is a long lasting product and will save them money in the long run. Also there is so much marketing opportunity for Starbucks to stay with a well known brand like Sharpie.

Help me convince Starbucks that they should stick with everyone's favorite marker so we can stay with our favorite coffee maker.