Ike dollars never circulated widely throughout the US, and their primary use was in casinos along the west coast. Another option is the so-called Brown Ikes, a proof set provided in brown boxes. One is Blue Ikes, coins from regular strikes in a blue envelope.
Even though both contain 40% silver, there are two versions with different purposes. The 1972 silver dollar value depends on the coin type you want to buy. 1972 S silver dollar Value (regular strike).History of the 1972 Eisenhower (Ike) Silver Dollar.