Back in the early days of the PC, at least for me, even more interesting than the shelves full of hot new 386 games for $40, was the spinning shelf (or in some cases) table full of little blue floppy disks. For just $3-5 (depending on number of programs) you could take home a playable sampler of some new games.
Individual programmers just learning their craft, all the way to budding professional companies like Apogee and a little company called id gave us a few levels of gaming goodness, and then, at the end, begged us to spend $20 to get the full versions of their games.
Commander Keen, Zone 66, Sango Fighter, and Wolfenstein 3D were some of my favorites.
Do you have any personal favorites. Do you still have any of these discs? Do you still have a computer that can PLAY these discs? Know of a place where these games are available today?