Buying Autographed Scale Model Race Cars & Collectibles If you are a collector of diecast scale model race cars or racing memorabilia finding collectibles that are signed or autographed by the driver can be pretty exciting. Many people ask if it is buying scale model race cars is a good investment and the answer is if you LOVE it, invest in it. Now we know like any other investment, people want a guarantee that a race car collectible or other racing memorabilia will increase in value. The truth is, like any other investment, there is no way to know. Historically, collectors will tell you that scale model die cast car collectibles are worth every penny, if for no other reason than for the joy it brings to the collector or recipient! Are Autographed Die Cast Miniatures and Scale Model Race Cars More Valuable? It's true that particular diecast race car collectibles are worth more money than others. The condition of the scale model car, availability and limited edition