Reddit mentions of The Bachman Books: Four Early Novels by Stephen King

It's one of four novels reprinted in The Bachman Books

I see copies of it in hardcover at used bookstores and library sales monthly.

The version you're looking for is available on Amazon under the same listing in paperback and hardcover, though I imagine the price is significantly more than the one you received. You can also try AbeBooks or Alibris.

It's generally not a good idea to shop for collectible/OOP books on Amazon. Amazon targets the casual reader, not collectors and uses bots to keep the listing pages neat and free from multiples. Hence, there's usually only 1 or 2 listings for any given book, even if there's dozens of editions. (Even if, as in this case, the newest edition is missing 25% of the original. Odds are that there were originally different listings for the new version, but then the bots got to it & merged them.) If you're looking for a particular cover or printing, you have to dig through & check the description on each offering under that listing and hope there's some clue there as to which edition that particular seller is offering. You can also click on the "Collectible" option (as I did in the links above), but you'll find that those are generally priced well above average market price.

Got a paperback of the Bachman books with rage in it on Amazon. But its pretty much a hit an miss, you may or may not get a copy with it.

https://www.amazon.ca/Bachman-Books-Stephen-King/dp/0451147367/ref=tmm_mmp_swatch_0?_encoding=UTF8&qid=&sr=

http://www.amazon.com/The-Bachman-Books-Novels-Stephen/dp/0451147367/ref=pd_sim_sbs_14_1?ie=UTF8&dpID=51TQ61DH6VL&dpSrc=sims&preST=_AC_UL160_SR95%2C160_&refRID=0S29VDZTW6S0NK7BBJ6T