Which jet ski to purchase yamaha or seadoo?

Up for sale near me are a Yamaha 500cc waverunner from 1989 and a seadoo 1992 sp 650cc waverunner. Which one is best for reliability as well as ease of use and fun. Thanks.|||I have both a seadoo and a yamaha, the seadoo has more power and in this case it's newer.|||i would get the seadoo one since its newer and probually runs better since its newer. i used to have a seadoo but a newer model but the one i had ran very easily. have fun|||I would do the seadoo, newer and more power. Seadoo sounds way more reliable than yamaha.|||seadoo