Trade shows, conferences; there are always interactive booths, which seem to draw the most people to visit their booth. This is because people are more interested in being able to touch and see the product and interact with it as well as the sales person. This provides entertainment for the consumer compared to the simple use of a television screen with a slideshow showing the product and people using it.
Technology is a great tool, but that is what it is. A tool. It is not able to do anything without the use of a person using it in the proper way. With the use of technology and the capability of position of it, the help of sales people, technology is more effective. Music, or people talking on the slides will also attract more attention than just a slideshow with no audio. The purpose of technology is to add that extra value to what you are advertising. Use technology wisely and ensure it is used to the fullest.