Umbran said:
Whatever the analogy, the general principle is fairly solid. You can be happy sticking with just one thing, no question. If, however, you want to improve over time, one of the best and fastest ways to do it is to broaden your horizons.
Umbran raises a good point here, but so does Erithtotl.
Umbran has the point I've always agreed with in that, the mark of a truly creative mind will not limit itself to a single genre. Some of the best writers we have on these boards read classic literature, fairy tales, modern lit, watch both high-concept and grade-B movies, and the myriad of sources they pull from shows up in their writings. To paraphrase a statement I saw on the internet a few years ago, if you want to be a better DM, go camping and horseriding.
On the other hand, 99% of us are not writing the Great Western novel of our time; we're prepping the next game in between working and feeding the kids. There's nothing wrong at all with sticking with what you know, especially if all you're looking for is fun with friends.
If OTOH you were wanting to write gaming material professionally, I'd probably suggest another path. Authors to-be are told, "don't read only what you like." Same goes for someone who wants to go pro game designer.
Then you have people like me, who sponge off minds like Jonrog1, Piratecat, Wulf Ratbane, Sepulchrave, and steal liberally from their work for my weekly game. I take their hard work, their DM Creativity, their well-read pedigrees of knowledge, and rip off the choice pieces for my games. That's the true beauty of ENWorld.
