if you are using the priority flat rate box then tracking is now included in ALL priority boxes and mail. And the small flat rate is like $5.60 total. I ship them with tracking straight mail under $5
Just so you know on that priority and tracking went into effect back in July when they changed their methods.. tracking only costs if going straight mail.. ALL PRIORITY now has it included in the price. Call the post office if you don't believe me but I ship many many packages per week and can pretty well hit the costs without even checking.. and my post master keeps me up to date on fees and what is enclosed .. its also on the USPS website to look up if you want.. folks don't want to be over priced on things and you will make better sales when you charge flat rate price accurately. I enclude a small fraction for envelopes as you can get in bulke ect and still keep rates low
You can easily ship this for around $3 or less first class mail with tracking. That includes a small amount of bubble wrap. I am sure if you lower the shipping you will get a lot more bids. This shipping cost I have to pass your auction up.