ffutures | Another RPG bundle offer

Esoterrorists is a game I've looked at and found quite interesting, from some excellent designers, but have never run:

https://bundleofholding.com/presents/Esoterror2017

"Revived from November 2015, this collection features The Esoterrorists by Robin D. Laws (Feng Shui, HeroQuest, Hillfolk) from Pelgrane Press. As an investigator for the benevolent secret conspiracy Ordo Veritatis, you defend modern-day reality against a loose network of occult terrorists, the Esoterrorists, who try to weaken the protective Membrane and summon Unremitting Horrors from the Outer Dark. The Esoterrorists was the first RPG to use Robin's GUMSHOE System (seen in Trail of Cthulhu, Night's Black Agents, and many other RPGs of detection and mystery).
We provide each ebook complete in .PDF (Portable Document Format). Like all Bundle of Holding titles, these books have NO DRM (Digital Restrictions Management), and our customers are entitled to move them freely among all their ereaders and music players.
Ten percent of each purchase (after gateway fees) goes to the charity chosen by Pelgrane Press co-owner Simon Rogers, Cancer Research UK.
The total retail value of the titles in this offer at launch is US$106. Customers who pay just US$8.95 get all four titles in our Player's Collection (retail value $44) as DRM-free .PDF ebooks:

The Esoterrorists 2nd Edition (retail price $15): The original GUMSHOE System investigative game of sinister occult conspiracies. We also include The Esoterrorists 1st Edition (retail $9), because Pelgrane gave it to us so why not?
The Esoterror Factbook (retail $15): An indispensable reference for assets, protocols, psychogeography, Membrane permeability, and Techno-Macho Utterances.
Dissonance - Music for Esoterrorists (retail $5): Four atmospheric tracks by composer James Semple encompassing suspense, action, and horror for The Esoterrorists or any modern mystery game. Includes the music that introduces the ENnie-winning podcast Ken and Robin Talk About Stuff.

Those who pay more than the threshold (average) price, which is set at $17.95 to start, also get our entire Gamemaster's Collection with seven more titles worth an additional $62:

The Esoterror Summoning Guide (retail $10): The Ordo Veritatis summarizes what it knows of the enemy's world-threatening methods.
Book of Unremitting Horror (GUMSHOE version, retail $15): A boundary-crossing collection of truly disturbing modern monsters.
Albion's Ransom: Little Girl Lost (retail $9) and Worm of Sixty Winters (retail $9): A complete two-part campaign of battle against a climate catastrophe in northern England.
The Love of Money (retail $10): A full-length campaign investigating Esoterrorist funding sources, and what they're doing with all that rhodium.
Profane Miracles (retail $5): Leonard (Fate Core) Balsera's fast-paced investigation of a millionaire supposedly raised from the dead.
Six Packed (retail $4): A gruesome revenge killing in a London slaughterhouse leads to a terrible threat from the Outer Dark.

There's going to be at least one item added after launch: When a title is added after launch, ALL customers who previously purchased the bundle automatically receive the newly added title, REGARDLESS of whether or not they paid more than average. This is their reward for buying early."

This is a fun system and I think it's pretty good value - but as usual (especially when I recommend things) I have to point out that I get this stuff free if I want it, your opinion may differ.