I pulled out my Cereal collection to see where it started and ended. No die-cuts or Ads, but 15 titles from Series 1-13. For Postcards, the book includes TS2 Grave Nuts, and bio cards of Molten Crisp, Stench Berries and Alpha-Bytes, as well as a Smokin' Joe Stench Berries sketch. For Old School, there's a Qreep, Kellab's Project 19 and a Frankenberry, as well as Jay Lynch Quacker, Cap'n Crud and Qreep sketches. ANS Wackys stop at ANS 6, and include coupon backs of Cereal titles. There are even titles from the Flashbacks. Looks like I stopped around 2009-2010. The last page has six "Lost" cereal titles from 2005, plus three that had been inserted in a magazine.
I think I'll be taking them out of the book and starting a binder where I can add pages. Hopefully the task of searching out which later titles I need will keep me occupied for a while, without breaking the bank. I'll probably do something else with the sketches, as there is no way I want to get sketches of every title.