The real issue here for most buyers is not "shipping" charges but "handling" charges. When a seller says that the buyer will pay "actual shipping" and states how the item will be shipped (e.g., 'UPS Ground, "Priority Mail,"), I don't really need an estimate except for an unusually heavy item. Unfortunately, there is a long history in this country of abuse of "handling" prices to inflate costs, so this word tends to trigger some suspicion when there is no amount or estimate given. Fortunately, the sellers who have posted here seem to be very conscientious about calculating their handling costs. I think most buyers would prefer that handling just be built into overhead, but of course the seller's ability to do that is dependent on the size of the business.