They must be 18's :D
sorry to mirror everyones comments but you will have a hard time getting rid of them.
i thought about it in the same way u did as in its cheaper to buy a used set them new tyres when the time comes, but it seems no one else sees it that way, or those ppl aren't looking.
i sold mine for 400 after 3 months! and it was on ebay everyday for 3 months!!!
I know someone got the 18' set less than 3 months at 1800.
BTW, when you sell the 16' set, think about there are no Lexus owner will interesting, but 1500 is obviously too much for Toyota owners.