The 6600 is a great machine. If you buy it on line, you have no one to help you down the line with service or anything else. Only you can decide if the difference in price is worth it. Why not approach your local dealer to see if you can work out a compromise? Local dealers actually care whether you buy from them or not. On-line stores have no commitment to the consumer. if the price is close,buy local. you won't regret it