I`ve got a few from when I was a kid (with the red line tires). They are in terrible condition, but a local collector offered me $3 each, in any condition, sight unseen as long as they were red lines. I declined, sentimental value.
The ones I am offering are still in package. I have seen these things go for up to $75 on Ebay, depending on exactly what it was. I have just lost interest, trying to keep up with all the current models and such.