While the majority of sports memorabilia collectors focus on cards, apparel, or equipment from the past, average people will find that posters offer them a much better opportunity to amass a substantial collection without paying thousands of dollars. You can find classic baseball, football, and basketball posters with very little difficulty and, in most cases, for very little money.

A few dollars will give you the ability to buy posters from the 1980s that could once be found in every store and almost every child's wall. These posters feature great players like Walter Payton, Dominique Wilkins, and Carlton Fisk who have not been out of the game for that long. You can even find autographed posters with signatures from '80s greats in all sports.

If you are looking for posters that date further back than the 1980s, you shouldn't have too much time in your search. There are collectibles dealers that carry posters dating back to the days of the original Bronx Bombers. You can find posters that pay homage to the gone-but-never-forgotten Brooklyn Dodgers and commemorative posters marking classic games, as well.

Even the oldest posters do not generally sell for astronomical prices. Many times, this is due to the fact that posters do not preserve well. However, if you are willing to pay more, you can find sellers with decades-old posters that have been preserved since the time they were purchased, so they are in near-new condition. If you are making a substantial purchase, you need to be sure of the current condition of the item, and you need to have your own preservation materials in place when it arrives.