Investor Ben Jaffe purchased the Sans Souci and reopened it as the Polynesian-themed Castaways on September 1, 1963.

Following another closure, it reopened in May 1967, and Jaffe sold the entire property later that year to Howard Hughes, marking his third Las Vegas casino purchase.

In 1986, casino owner Steve Wynn purchased the Castaways and nearby vacant property with plans to build a new resort on the land.

[15] Saxophonist Charlie Ventura also filed a lawsuit, after suffering a fall on the casino's stage during a performance.

[16] In July 1958, two Las Vegas men, Jerry Kastner and Arthur Rozen, agreed to invest a total of $75,000 in operating funds.

[21][22] Federal agents seized money from the Sans Souci for its failure to pay cabaret taxes.

[21] The Sans Souci later filed a $400,000 damages suit against Kastner, alleging that his pullout resulted in the property's bankruptcy.

[19][23][20] In 1959, a federal judge approved a reorganization plan which would include leasing the casino, showroom, restaurant and bar to a new group for five years, at $8,500 a month.

[22][24][25][26] The showroom reopened in May 1960,[27][28] and the state approved the casino to add table games; it had only been licensed, the month prior, to operate slot machines.

[29][30] In August 1960, agents of the Internal Revenue Service seized 10 slot machines, which were considered contraband after the casino failed to purchase tax stamps.

[31][32] The Sans Souci re-entered bankruptcy in November 1961, after four major creditors rejected financial negotiations.

[6] Shortly after his purchase, Jaffe announced plans to rename the property as the Polynesian-themed Castaways, and to add additional rooms while remodeling the existing 82 units.

[38][39][40] The casino was operated by Mississippi oilman Ike P. LaRue and his business partner Everett Eugene McCarlie.

[52][53] Several months later, Howard Hughes reached an agreement to buy the Castaways, marking his third Las Vegas casino purchase.

[68] In October 1986, the Castaways and nearby vacant acreage was sold for $50 million to casino owner Steve Wynn, who planned to build a new resort on the land.

[69] Real estate developer Donald Trump had previously discussed purchasing the Castaways, until Wynn made a better offer.

[70] Numerous VIPs, including Wynn, attended a farewell celebration at the casino on July 19, 1987, ahead of the property's closing the next day.

The Mirage's northern edge on Las Vegas Boulevard occupies the former Castaways property.

[82] In 1987, amid the Castaways' closure, the temple was disassembled and donated to members of the Jain sect in Las Vegas.