In high school, I was an assistant manager at an Egghead in San Jose and got the employee discount on the id Anthology. It was pretty sweet. (Not to mention we borrowed nearly everything good in the store and re-shrinkwrapped it.) When the shop closed up in 1998, we were fireselling inventory to each other at "pick a number out of the ether" prices (Got Borland C/C++ 3.1 and a SCSI Zip Drive, the largest retail software package ever, for a song.)

http://doom.wikia.com/wiki/Id_Anthology

https://www.mobygames.com/game/dos/id-anthology

https://en.wikipedia.org/wiki/Zip_drive

http://www.emsps.com/oldtools/photos/borland/c/c31afa.jpg