How much is the lowest I can spend for a good quality gas grill? Are all the ones with brass burners >$1k? I could see in the few hundred range, but would like to stay well south of a thousand. I assume this puts searing units out of range (i really don't understand exactly how they work anyway - they still use gas, right?). Also, our new house (if we ever get to close ) is not a mansion like the Versailles of the Rio Grande area.