I have a 6th or 7th print OCE (need to check the details). I picked it up in the early-mid 80's along with a white box of Tractics. It was a used book shop and they had a stack of the things. IF ONLY I HAD KNOWN..... (Similarly, another used book shop in the area had several copies of Chainmail - a late print with the coil spine - in stock. I /think/ I got a copy of Swords & Spells from them, though (again, could have picked up extras). Finally, our local Kay-Bee shop had multiple copies of the 1st/2nd prints of Deities & Demigods, at like 4.99 or 5.99 apiece!
Sort of. We had a white box set as part of our D&D resources back in high school. The box fell apart ages ago, the reference sheets and whatever else was in the box as extras are gone, but I still have all the booklets.
Similar thing happened to my Holmes set. I lost the geomorphs and monster/treasure assortment, and the box fell apart. Still have the dice, which are very very worn down and not really usable (the d20 is practically a blank sphere.) But back in the day, I bought a clear vinyl cover for the Holmes rulebook, and although it's worn and the pages are about to come loose, it's still intact.