First of all, test drive all the machines that are at the show. Make notes comparing features, pricing and what felt comfortable. These machines can not be sold as new, they are called open boxes. If there is one you have fallen for, just ask the dealer what all he will include. They don't want to be have to package these machine up and bring them back to their place of business. I found it to be very much like buying a new car. And don't be hesitate when making a deal to tell one what the other is offering.