The baseball card market naturally fluctuates based on several factors such as time of the year and player performance. As you would imagine the off-season is a better time to collect and purchase, while a hot steak or call up is typically the best time to sell. Prospecting is a term used within the hobby to describe the process of buying low and selling high. It can be difficult to determine who to buy, which players will eventually “become hot”, and when to sell at peak demand. If you are a casual collector who buys for their team PC (personal collection), you also want to make purchases when the market is low in order to save money.