You can find many uses for a telescope camera, if you look far enough. Indeed, telescopes themselves have been around for a long time, shedding light on the mysteries that are above us.
For years and years, people have been using telescopes to record the night sky. In the past, this recording was done with a pen and paper, and people would draw what they saw and compare with others. Now, of course, we have telescope cameras which allow us to do much better.
With telescope cameras you are going to be able to not only look at what you are seeing in the sky, but also take a picture of it. This is very important, because you can take photos of the night sky and you can use a computer to save those files and checked against what has been seen in the past. You can upload the photos that you have taken of the night sky and put them into a grid where the usual stars are shown, and by this you can find out when the picture was taken and from where.
Uses
One of the main uses of a telescope camera is simply to learn. By taking photos of what we can see in the night sky, we can go back and study these at a later time. There is only so much studying you can do...