If there is great demand for certain prints or maps and the items are scarce to find, then a higher price is most always asked for. Most often the worth is whatever the collector is willing to pay. Supply and demand is an important guideline to follow. A collector will often check online if a map or print is rare and hard to find. The price of an antique print or map can range from as low as $10 to as high as tens of thousands of dollars.

The condition of an antique print or map is another important factor. Many prints and maps have kept well preserved for years and are in fine quality mint condition. But other prints or maps have managed to deteriorate either by soiling, foxing or staining. Some are torn or have worm holes etc. The finer the quality, a print or map will usually demand a higher price.

Just from researching online you may find that print dealers will list the same print at various price ranges. When pricing a print, the dealer usually considers interest and demand of the item, overhead ie. the cost of presenting the print for sale and also the cost plus compensation. A dealer usually wants to be compensated for the cost of safe storage and marketing of the print.