Back in the late '80s/early 90s, CO used the Holiday Inn Jetport (this hotel has been refurbished and reflagged as the Wyndham.

In addition to the assigned crews on working trips , a number of FAs used to keep rooms as "crash pads" - the daily rate that was extended back then for "non-official" travel was low enough to make this economically feasible (four crew people wouls share a double room, with the idea that on most days, the majority of them were away working.

As a non-flying employee, I used to get the same rate ($30) - it was so cheap we'd stay out in EWR and take NJ Transit or Olympia busses into Manhattan (no train back then)