Yes most of the costs described in the video are the base costs. Anyone selling their collection should not be surprised if there are some additional costs. If you print your labels through eBay technically you have the paper and ink as a cost. If you want a margin of safety for your expectations then adding 1-2% onto what you expect the costs to be would be prudent.
You need to factor in printing and paper if you provide a receipt. Also if you mail in a plastic baggie or other type of protection from the usps.
Yes most of the costs described in the video are the base costs. Anyone selling their collection should not be surprised if there are some additional costs. If you print your labels through eBay technically you have the paper and ink as a cost. If you want a margin of safety for your expectations then adding 1-2% onto what you expect the costs to be would be prudent.