The Arcade Flyer Archive collects business-to-business ads that went out to arcade operators in the before-time [via Buzzbloq, which picks out a few faves]
These vintage arcade ads provide a nostalgic and humorous glimpse into past game marketing practices, offering a stark contrast to the polished and sophisticated ads of today.
The not-for-consumers aspect does mark them as about a decade behind the times in certain obvious respects. I think by the 1980s, this sort of thing wouldn't be found in everday magazines:
Shark Attack, with its thrust and munch buttons, is yet most remarkable for its absolutely deranged use of a built-in mellotron-like device to have extensive speech samples in 1980. In the video below, play (and sound) starts about 35 seconds in.