Humble Bundle's So You Want To Try Out Call of Cthulhu is $25 for 26 items:

CHA-5116 Call of Cthulhu: The Coloring Book (2017) [OWN]
CHA-5120 Keeper Tips (2021) [OWN]

CHA-23107 Pulp Cthulhu (2016) [OWN]
CHA-23135 Call of Cthulhu Keeper Rulebook (2014) [OWN]
CHA-23136 Call of Cthulhu Investigator's Handbook (2014) [OWN]
CHA-23137 Call of Cthulhu Keeper Screen Pack (2014) [OWN]
CHA-23138 S Petersen's Field Guide to Lovecraftian Horrors (2015) [OWN]
CHA-23140 Gateways to Terror (2019) [OWN]
CHA-23141 The Grand Grimoire of Cthulhu Mythos Magic (2017) [OWN]
CHA-23148 Doors to Darkness (2015) [OWN]
CHA-23149 Reign of Terror (2017) [OWN]
CHA-23151 Down Darker Trails (2017) [OWN]
CHA-23152 Petersen's Abominations (2017) [OWN]
CHA-23154 Alone Against the Dark 2E (2017) [OWN]
CHA-23159 Dead Light and Other Dark Turns (2019) [OWN]
CHA-23161 Berlin: The Wicked City (2019) [OWN]
CHA-23162 A Cold Fire Within (2019) [OWN]
CHA-23164 Alone Against the Frost (2019) [OWN]
CHA-23165 Cthulhu Dark Ages 3E (2020) [OWN]
CHA-23167 Mansions of Madness v1: Behind Closed Doors (2020) [OWN]
CHA-23170 Malleus Monstrorum (2020) [OWN]
CHA-23171 Malleus Monstrorum Keeper Deck (2021) [OWN]
CHA-23172 Does Love Forgive? (2020) [OWN]
CHA-23174 Alone Against the Tide 2E (2020) [OWN]

CHA-23178 Call of Cthulhu Starter Set 2E (2022)
CHA-23180 Nameless Horrors 2E (2023)

I realized this repeats a $25 Jan 2024 Bundle but changes out the Starter Set to the latest version and adds Nameless Horrors.

The $15 version of this bundle has both Starter Set ($10) and Nameless Horrors ($22 pdf) so I guess closer to worth it.