Not really an easy question to answer, but I'll give it a shot.
It allows me to create miniature replicas in a 3D form of historical and/or present military equipment, which I have an interest in. Those interests were derived from reading books, magazines, watching tv, and movies, both on the equipment and those conflicts which caused the need for their creation.
Modeling is a acquired skill, not an artistic gift that I haven't the slightest measure of. It's a relaxing and enjoyable way to spend a few hours per modeling session. And with the finishing of each project, a sense of accomplishment and pride are my rewards which I can share with family and friends.
With the growth of the internet, and sites like Kit Maker Network, I've learned a great deal, made a few friends, and get to share my projects and ideas with other members.