Changes

Over the years, technology has been constantly evolving. What was considered "new" or "innovating" can slowly become "outdated" or "useless" to some people. Whether it be that product X comes out and replaces product Y, company B buys company A and decides to remove their existing products, or a company decides it's unprofitable to continue maintaining support for legacy products, all things are at risk of disappearing someday. Because of this, many people have decided to take it upon themselves to preserve what others would consider to be not as important. In some way, emulation has a major role for preserving software in general (what's to the point of archiving a bunch of old games if you have no way of playing them!).