Digital photography allows you to keep track of all your pictures before you print them. A lot has changed during the last decades. Traditional photography used to be making pictures without seeing them on a screen. Sounds like ages ago, right?
No more darkrooms necessary nowadays to enjoy the results of the shots you took. Digital photography also allows you to take loads of shots without having to change the film. It is so much easier. Digital photography and digital photo printing services allow you to capture every moment immediately and multiple times.
Besides that, also the quality has become a lot better and more important. Now everybody can become a real photographer with the right equipment.