Buying a stylus is definitely something that is not going to be expensive and this can be bought along with any touch screen device that you might be buying; even if you are purchasing a large number of these machines, stylus will be an inexpensive investment to make with the equipment as it comes in very useful of you want to maintain the machine in good condition. You can buy such a stylus from Protouch itself when you are purchasing the self service kiosk or machine. They actually come in very handy when the navigation, such as digital signage to be done is more complex but more than anything else, the presence of a stylus will induce the users to use it instead of their nails or their finger tips which otherwise causes a lot of scratches and the likes on the screen of the ticket kiosk. Using a stylus is therefore a cleaner bet.