When it comes to negotiating, be aware that buying a new jet ski is different from buying a new car in many ways. Just after the end of summer and the before the beginning of winter is the prime time for a watercraft purchase that can save you a lot of money. They will lose around twenty-two percent of their value in the first year of ownership, and then around eight percent of their value every following year. Unlike new cars, PWCs don’t arrive in “ready to go” condition, which results in a lot of extra work and expenses for the dealer.