Math Question

An increase in value of any collection is not guaranteed for a variety of reasons. If you are a collector, please use your own collection to answer the following questions. If you are not a collector, then use the "Elvis Memorabilia" paper (found under Doc Sharing) for your answers. 



What are some of the factors that could cause the value of your collection to drop in the future? 

What questions should an investor ask before investing in anything? 



If no new memorabilia can be created with an autograph, how does the idea of scarcity increase the value of an item?