How much is a 1965 quarter worth?

I'm curious about the value of a 1965 quarter coin. Could you provide me with an estimate of its worth? Are there any particular factors that affect its price, such as its condition or rarity? Additionally, is there a significant difference in value between circulated and uncirculated coins? Understanding the various aspects that influence the coin's worth would be beneficial in determining whether it's a valuable addition to my collection or simply a common coin.