Everybody knows that true sports fans show their team spirit through clothing, Jerseys, player action figures etc. Basically whoever has the coolest stuff is the better fan (or so the mentality goes.) But where did this all start? Glad you asked.
It all starts with what makes a possession so valuable, either monetary wise or sentimentally. Basically this boils down to who was the previous owner. A wooden bat from a sports store could be worth 50-100 dollars, but the same bat is worth millions in the hands of Babe Ruth. But why do people spend a fortune on something just because a famous person touched it? The answer is emotion. The bat from the sports store gives you little to no joy because there are no memories connected to it, therefore no emotions are triggered from holding it. That being said, the Babe Ruth bat instantly brings back memories of watching him play, your first baseball game, your first home run, etc. People basically pay high prices for objects that give them a dopamine rush, and business see this as an opportunity. Websites like Amazon and other sports memorabilia stores thrive on this emotion based spending.
Now before you get all defensive i am just laying out the facts. I too own sporting memorabilia and for the same reason. They make us feel good and that's ok. It is just important to understand why.