During a stamp collector convention, the chairman spoke about the profitability of investing in rare stamps. Last year I invested $150,000 in rare stamps. These stamps are now worth $200,000 according to the catalog, meaning an annual return of 33%. For comparison, the average return in the stock market in the last 30 years was only 16%. Find (at least) three problems with the chairmans argument.

*PLEASE PROVIDE 3 REASONS, THANK YOU!*