From 1954 to 1981, all Corvettes were made in St. Louis, Missouri. (The first year 'Vettes were built on a special line in Flint, Michigan.) But on June 1, 1981 the new Corvette factory in Bowling Green, Kentucky opened up and started producing 1981 Corvettes. The factory at St. Louis did not produce its final car until July 31, 1981. So there's a little overlap.
Last weekend at the Barrett-Jackson auction in Las Vegas, Nevada, both the last Corvette produced in St. Louis and the first Corvette produced in Bowling Green were sold as a pair. The cars brought $150,000 each, which is probably the high water mark to date for any 1981 Corvette. But these cars are both well-documented, ultra-low mileage (14 and 4 miles on the odometers, respectively) time capsules of the changeover in factories.
Looking over all the Corvette sales at B-J Las Vegas, prices seem to be higher than normal - maybe the recession really is over? The bargain of the event was this 1977 L-82 Corvette, meticulously restored and sold for just $8,800.