Physics is about questioning, studying, probing nature. You probe, and, if you're lucky, you get strange clues.
Incidentally, think about the ramifications of storing data on light waves that can be stopped and started at the speed of light.
To get high data transfer rates in communicating information, you would love to use optical fibers. The problem is that light is extremely hard to manipulate. So we make a perfect copy of the information carried by the light. We transfer it to matter - the condensate.
