The biggest reason, I believe, is just the ability to capture a moment as it happens with just a single click of a button. Sure, skilled and experienced photographers may capture the scene in a more artistic manner compared to the casual snapper, but the key point is, you captured what you want to remember right then and there!
Our brain and its stored memory are amazing, you can piece together fragments of an event and relive the entire day with ease. If it’s a group event, all of you can recall every single detail collectively with just one photograph. The emotions a photograph can throw back at you can be overwhelming at times regardless of technical execution.
The ability of photography to connect to our past, associate us in an event, and preserve memories without words or interpretation makes it an influential hobby for all of us.