If your gas grill has a side burner, chances are that you use it. Sideburners though seem like a luxury item on grills offer extra cooking space while attending to your main course. You should use it for sauces, side dishes and such. If you use your side burner a lot, like other grills grates, you will likely need to replace it over the course of the life of your grill. They are easy to replace and reasonable too.