I bought replicas of all the 1830 BoM, 1833 BoC, and 1835 D&C early in my disaffection. It proved very helpful when discussing scripture changes with my wife, back in the day... Now, having served their purpose, they collect dust on a shelf. I'm good with that.
I used to have a book by the Temple Lot guys comparing the Book of Commandments and the D&C side by side showing the differences in italics. That was a good book.