If you're in SoCal call California Correct Craft and ask to set up a demo of a Sanger. Some of the direct-drive Sanger's (DX models) retail for about the same cost as a used Nautique/Master/Tige', and come with warranty etc. (Besides, Sanger's are much better than some of the more "cost conscious" wake boats, you truly do get what you pay for with these things)
Boat-trader also has listings for used ski/tourney boats from private sellers every week....good luck with your search..