I gamed with a guy at a convention several years ago, who after the game, struck up conversation about how much he enjoyed gaming, then shared that he would never buy/build/paint, etc. He said he just goes to conventions and plays, gets to have all of the fun, while the “suckers” do all of the work. I asked him if that was how he perceived the GMs, he smiled a big smile, said, “yep”, got up and left. Takes all types.
As for me, I’m into the whole deal, I paint, build, and play, even master and cast some of my own figs. While I am okay using someone else’s troops in a game that they are running, I can’t use troops painted by someone else in a game that I’m running. I must paint my own figs or they aren’t “my” troops. I even feel that somehow I’ve “cheated” if I buy buildings and terrain pieces manufactured by others, though time constraints force me to do so. For me, the game is just a part of the creative process.