In January 1973, ownership of the Landmark was transferred to Hughes' Summa Corporation, formerly Hughes Tool Company. That year, the Landmark was valued at $25 million in a property appraisal. By 1974, William Bennett and William Pennington made an offer to buy the Landmark, but Hughes raised the price several times, from $15 million to $20 million; they bought the Circus Circus resort instead. In January 1976, the Landmark began offering foreign-language gaming video tapes to its German, Japanese, and Spanish hotel guests, who frequently limited themselves to playing slot machines rather than table games because of language barriers. Summa general manager E. H. Milligan said, "As far as we know, we are the first hotel in Las Vegas to present this service in this manner." The hotel and casino briefly closed in March 1976, as part of a hotel worker strike consisting of nearly 25,000 employees, affecting 15 Las Vegas resorts. The strike lasted two weeks before ending in late March. Hughes died of kidney failure the following month.