I made lots of trips to the airport for timetables back in the 80's and 90's. In high school, sometimes I'd drive to the airport after working at McDonald's, still in my employee uniform! Parking was inexpensive, and back in the pre-consolidation 80's, my home ROC
often had more than 10 airlines. Lots of timetables to gather!
During the first years I lived in the DC area, timetables were still printed. Going to IAD
was especially a treat, because of all the international carriers I could gather.
It was a sad day when Southwest, the last US holdout I know of, stopped printing timetables. I have a collection of a few hundred timetables, that fills a filing cabinet drawer. Printable PDF's indeed aren't the same thing.
A really neat part of aviation history, rendered obsolete by the internet. At least consumers got a bit more influence over airfares out of the deal.
At least our man Greg is still out there making schedules available at www.departedflights.com.
This site is an invaluable research resource.