After Infocom decided to handle publishing themselves and enjoying trememdous success, the tone does become much more sophisticated (from Analog Magazine, 1983).

Also seen in the lower right corner: the non-standardized packagings (prior to the grey striped boxes used later on) for Suspended, where the box contained the plastic mask of a human face, Deadline, where everything that came with the game was put into a police-like looking folder, Zork III, and Starcross, probably the most famous of these individual packagings - a saucer.

(And before you try to decipher the right-hand text in the first picture: a close-up will be shown.)