I had forgotten, in fact, but it was a N-scale version of the GGN a guy had built or was building here that caused me to join these forums in the first place. Same fellow also does a fair bit of 3D printing too, as I recall. Last I remember he had printed up some 40' containers (presumably N).
So "Six HO Railroads" (an earlier book, also by John Armstrong) arrived just the other day. Really just bought it for nostalgia's sake, but it's nice to see an old friend again. I'm sure I read and re-read the cover off the first copy all those years ago (the red version) before it disappeared.
This copy is cellophane wrapped and dated 10/06. $3.45. Cost me about $18 with shipping, but well worth it.
My experience with archival stuff is: Buy it when you can if you anticipate passing it on or referring to it later on. It just may not be available at a reasonable price. Case in point the heavy tome I bought re: The Porsche 917 (Naher). Cost me about $125 then and it's double the price at a minimum today. I THINK I recovered my copy from all the burglaries, but I can't find it--I was moving fast at the time, so I hope it (and a couple more) are in a box around here somewhere. Hope so for sure.
If you are looking for out-of-print stuff like timetables, I would also buy that when you can. As it happens I stumbled across a "train-handling" study, possibly published by the A.R.E.A. or the test group in Pueblo CO (major test track there), and it describes everything from tonnages to traction and slip to short-time ratings to coupler strength to...well...a lot of the rest. Couple that with other material and it becomes more obvious why a railroad like the D&RGW allowed the use of dynamic braking on only the first twenty-four axles on ANY train. None on mid-train helpers or rear-end pushers (which were often cut off anyway) at all.
Of course with today's distributed power it may well be different...but I'm interested in the sixties and seventies, so that data is hard to come by.