This price only applies for people living in the Brisbane area who can drive and pickup the mouse. Currently Umart have these mouses for $69 dollars and is pickup only.
After you apply for cashback for the mouse, it will be effectively $29 for Microsoft's most expensive mouse.
Credit goes to AntMan76 for giving me the tip
Sorry, but Umart have it for $69 (internet price) and $79 for the 'walk-in' price. Stock is in Milton and when you order it through another store they will transfer it to that store for pickup.