Your going to get varying opinions on this but the most I would ever consider paying for a non running seadoo from say 1994 to 1999 ish would be 600.00 each. If the seats cracked, subtract 100.00, if the decals are in bad shape, subtract another 200.00. Myself personally, I try to buy non running seadoo’s for the price of the trailer. I consider a used single trailer to be worth 600.00 and a double to be worth around 1500.00. Do you have any pictures you can post?