Actually u can just put this in a standard size envelope put a stamp on it and put it n the mailbox no need for shipping on such a small item I receive all my ds games and send ds games this way.... Just a suggestion
Cases are nice and to be honest tracking is a MUST hence the $5 for shipping, it also protects the buyer and seller. I ship out games with tracking and totaling the package and shipping is a little under $5 which is the right price.