I think it's worth it. You get a copy of the actual Dealer Invoice, so you know which dealer sold it. Of course, the invoive lists the vin. and all the options the car came with including prices. The order sheet copies are highlighted with all the options your car came with. There are also about 30 pages of AMA Specifications and a glossy press phota of your model car.
Is it worth it? That an individual decision, but I have always bought it for every Pontiac I have owned.