Although presentations have taken a back seat in the last few years to make room for social media and email marketing, they are slowly coming back onto the scene. Holding a seminar or a presentation is a great way to really reach those who are serious about buying your product or service. Talking with someone or with a group of people face to face allows you to play off reactions and sell something easier using hand gestures and presentations. Of course, holding a successful presentation means having a successful projector.