Why are Superbirds worth so much?

If I can get the attachment right, in the pic you can see the motley crew that I had the pleasure of cruising across the country this fall to the Talladega cup race. The two blue cars are from Pacific Northwest, the red daytona and the Neil Castle themed clone are from SoCal, and the Orange daytona is from New Zealand. None of them are mine but it was the chance of a lifetime to go on this trip.

The two blue cars from the northwest logged nearly 7500 miles in two weeks. The New Zealanders' car spent nearly 6 weeks in a container.

The picture is from Monument Valley, AZ.

Every five years the Winged Warriors club meets at Talledega for a reunion. I think there were something like 125 all in one place at one time. We got to take a lap on the track roughly 2 hours before the start of the race. That was way better than the race itself.

OK, so the pics are to big to post and I am not computer literate enough to resize them, anybody I can email them to and have them post for me??
Thanks, 12valve