Making a vector map is a good way to visually represent the world, continents, islands and show the locations and boundaries of countries, cities, regions, houses etc. Vector maps are vastly scalable. Vector based program is much better for drawing and editing maps than image-based programs like Photoshop. You can use completely different line designs for different things, change the width and color of the lines on the fly, and change the placement of the lines very accurately. In many cases, you will find that using image based maps provide very poor unwanted result and presentation. To maintain output quality and serve the purpose vector map conversion will be right choice for you.