Professional-style, six-burner gas cookers are not required in the average kitchen and may not even outperform standard models, it has been suggested.Derek Donovan, a columnist for the McClatchy-Tribune News Service, noted that such ranges are often based on models used in commercial restaurants, but with modifications for commercial use.He said that such additions tend to push the price up considerably, with some ranges with double, full-size ovens and six-burner cookers costing thousands of pounds.However, Celia Kuperszmid Lehrman, deputy home editor at Consumer Reports, told the writer such luxury appliances are generally not needed. Weve tested a lot of those ranges, she added. They really havent performed better than ranges that cost a fraction of the price.Meanwhile, Michael Robinson, director of communication at Factory Direct Appliance in the US, suggested that many people simply buy such professional-grade appliances because they want to show-off.Renovator Michael Kitchener recently told North Side News that people should consider their needs in older age when deciding upon their layouts and the placement of appliances such as the kitchen sink and refrigerator.