It is an art and craft. The figures must be painted, the models must be built, and the terrain and accessories constructed in such a way as to combine practicality with visual appeal. It is competitive. Any game with winners and losers is competitive. It is a social activity.
Games usually require at least one and preferably more opponents or partners.
The main advantage of the wargaming hobby is that it fulfills so many different recreational needs at one time. Everyone Is Welcome. All Events Are Free. All Skill Levels Welcome.