Another specification for comparison you will find in most manufacturers' brochures is available square inches of cooking space, often split between a primary and secondary cooking surface. This gives you some idea of how much food you can cook at once, but be sure to review the breakdown of the total cooking surface to make sure it includes surfaces you're likely to use consistently. The same is true of wok rings, rotisseries and griddles. If so, as long as it's in your budget, the more exotic the addition, the better. Many are self-cleaning, and all add the visual realism of an open fire.
Manufacturers also offer a wide range of accessories for fun and function.
Many provide cookbooks to get you up and running with creative dishes for your grill from entrees to desserts to turkey for 12. Other accessories include aprons and chef's hats, hot-pads and heatproof cooking mitts, cutting boards, prepackaged wood chips, cleaning kits, tool sets and shish kebabs. Special fry pans and half grids add cooktop flexibility, while vinyl covers protect your investment from the elements.