When you introduce a new idea or concept to someone, don't automatically expect them to share your enthusiasm. Everyone needs time to adjust to new ideas. If you're reading this you probably are someone who "comes around" to new tech ideas fairly quickly. On the other hand, most folks need time for things to really sink in. In fact, it is a common response for people to be defensive about their old way of doing things. When a person is heavily invested in something, change is difficult (and often expensive). If you doubt this concept applies to you...give it a little while to sink in. You'll come around.