Vintage baseball cards have been a prime focus of countless collectors and historians of one of America's favorite pastimes. Some baseball card collectors pay large sums of money to gain possession of these cards and they may also put a lot of time into it. Since rare baseball cards are difficult to find, collectors seek for ways to be aware of the rare cards that come into the trading or selling market. Baseball card collectors normally obtain them from other card collectors or from specialized dealers. Some collectors may sell rare baseball cards over the internet and very often on eBay.