Try pirateship, an authorized eBay label provider. You can import your orders. They offer $100 insurance regardless of your eBay account status. You don't need a eBay account to use the service. No monthly fees. They offer cubic pricing. No extra text or graphics in your downloaded labels to crop out.
Before USPS's recent merger of the Commercial Base & Plus rates eBay was for many years charging some sellers the higher Base price while others were charged the Plus price. During this period anyone could go to pirateship and obtain Plus pricing regardless of their eBay account status, which really calls for an explanation from eBay!
Currently eBay claims that certain sellers will qualify for a 3% discount beyond the currently merged Commercial pricing rates; however, this is not always true as I've printed labels from pirateship which cost the same as eBay. In many other cases the eBay labels were cheaper by 3% or less.
From further input from outside eBay it has been suggested that eBay 3% discount is due to one of two factors:
1. eBay has received special treatment from USPS and negotiated a lower rate. The details of such deals are not available to the public. Pirateship and similar companies can also obtain their own private deals with USPS; however, such companies don't have as much economic resources to give members of Congress political contributions as eBay does. Congress has oversight over USPS. Based upon eBay's past practices (see diagram below) they certainly do not deserve any special treatment.
2. eBay is giving the 3% discount on their own and it does not represent special treatment from USPS. Can't do much about that unless it breaks USPS regulations.
