reading through the article it seems that the casino is tied to a lot of notable history that has happened in Las Vegas. quite a shame that it is closing now.
It is, that's why you can see some emotions on the employees and those patrons as well.
And in movies, for sure majority of us have seen Godfather I and in one scene when Pacino travelled to Las Vegas to take to Mo Greene, it was reported that this scene was in Tropicana.
Also another movie, James Bond's "Diamonds are Forever", old movie too, and 007 stays at Tropicana.
They should have kept it for historic reasons, tourism and when its got that much history its like a movie set surely. Alot of the history they cant state clearly because it would be mafia or some crime related surely and they dont want that ongoing implication so its all lost now.
As much as we love too see this happened and preserved the casinos as historic place, the owners will have to make money out of their business. So no wonder they have to sell and maybe it was really established by the mob and since their influence has waned down in the last 20 years, they can't exert any pressures to the owner not to sell. In short,
'they don't have the muscle anymore'.