Well with comics going digital someone has to make them available to read online/on devices.
Courier fees have always been around - the inker has to receive the pencilled pages from the penciller; these are lessening with digital colouring as colours can be done directly over pencils (such as the latter 4 issues of Eaglesham's AF run) without the cost of an inker or courier, providing the penciller can scan and send them.
This, however, then adds FTP/Website costs as they have to upload them somewhere.