When I was in high school, I was fond of collecting old coins. my collection were simple currency coins around the world. I was contented with what I had before. My friends are also coin collectors and we traded our coins within ourselves. When I entered college, things changed. My new classmate told me to try collecting unique coins like silver and gold coins for it has quite a good amount involved unlike currency coins that I had. I tried collecting rare coins or precious metals for a change and I was surprised with the result of my hobby. As it turned, my hobby is now a business for the coins, rare coins are so precious that it's market value increases always. I tried bigger quantities of gold bullion and silver. Just the other day, I got a call from a trader and he was asking if I am selling my gold coins and silver. I checked the value list and the prices had already doubled in just several days. Gold and silver are two coins that are in demand right now. My hobby is now my business.