It's probably very good advice. First I followed the first part of the strategy (and bought what I would like to play – those email discounts are awesome!). Then I bought some titles just because I don't expect them to be in a better price anytime soon. Let's consider it some kind of compromise ;)

Don't forget the Thief series, bro! Some of the best games ever made, finally at a discount to rival Steam's! At less than a buck each, you'd be a chump to miss out on these gems!

I can put your mind at rest about Flatout 2, it's awesome!

Looks like they corrected the price and it is no longer $9.99. Hope you got it while it was cheap.

I was hoping for a similar sale like the last winter sale one .

They've said here that Summer and Winter Sale events are usually the biggest ones. It's not even a month the last one ended so, to be honest, I didn't expect even this one. I think it's really nice opportunity for those who missed something before.

For now I used one of email discount codes and I really hope RWarehall is going to help us to find the best deals here.

It's up to date now except for this mornings early changes, many of which were suddenly reverted. So I'm giving GoG a little time to make up their minds...

GoG Sales 2020 Google Doc:
docs.google.com/spreadsheets/d/10KmoNbiAYJJxUIrjfCD0yc08L0UwTxzPuqbTpWeZCXM/edit?usp=sharing

Thank you!! :)
What was the changes, actually?

There were some weird discounts. Many price rises but strange drops for Pillars of Eternity DLC. There were about 50 changes and I think all but 4 changed again within the hour.

Working on catching up...but here's a start...

Yesterday's Late Changes:

Added:
Demetrios - The BIG Cynical Adventure (80% off vs. 85% off)
Driftland: The Magic Revival (60% off - Matches Low)

Discounts Increased:
BioShock™ 2 Remastered (75% off - Matches Low) [Was 67% off]
BioShock™ Remastered (75% off - Matches Low) [Was 70% off]
Bloodstained: Ritual of the Night (35% off vs. 40% off bundled vs. 30% off unbundled) - New Unbundled Low [Was 30% off]
Indivisible (35% off vs. 44% off bundled vs. 25% off unbundled) - New Unbundled Low [Was 25% off]
Mars: War Logs (85% off vs. 75% off) - New All-Time GoG Low [Was 75% off]
Objects in Space (50% off - Matches Low) [Was 15% off]
Spec Ops: The Line (80% off - Matches Low) [Was 75% off]
STAR WARS™ - The Force Unleashed™ Ultimate Sith Edition (65% off vs. 75% off) [Was 33% off]
The Bureau: XCOM® Declassified™ (80% off - Matches Low) [Was 75% off]
Train Valley (70% off vs. 85% off) [Was 66% off]

Spreadsheet is now up to date with today's changes. The "Recent Additions" tab tracks these changes (starting from about 3 hours from the sale start). There were quite a few additions in the first couple hours yesterday, too many to list.

Today's Notable Changes

Added:
Egypt Original Soundtrack [DLC] (70% off - Matches Low)
Egypt: Old Kingdom (70% off - Matches Low)
Egypt: Old Kingdom - Artbook [DLC] (70% off - Matches Low)
Predynastic Egypt (70% off - Matches Low)
Vaporum (50% off - Matches Low)

Discounts Increased:
BATTLETECH - Mercenary Collection [Deluxe] (66% off vs. 50% off) - New All-Time GoG Low [Was 50% off]
Cornerstone: The Song of Tyrim (75% off vs. 90% off) [Was 50% off]
Serious Sam: The First Encounter (80% off vs. 90% off) [Was 75% off]
Serious Sam: The Second Encounter (80% off vs. 90% off bundled vs. 85% off unbundled) [Was 75% off]
Serious Sam's Bogus Detour (75% off vs. 75% off - $0.05 more) [Was 50% off]
Stellaris: Apocalypse [DLC] (50% off - Matches Low) [Was 20% off]
Stellaris: Galaxy Edition [Deluxe] (75% off - Matches Low) [Was 50% off]
Stellaris: MegaCorp [DLC] (50% off - Matches Low) [Was 20% off]

GoG Sales 2020 Google Doc:
docs.google.com/spreadsheets/d/10KmoNbiAYJJxUIrjfCD0yc08L0UwTxzPuqbTpWeZCXM/edit?usp=sharing

No because I'm one "many folks in here", that would never click on such crappy marketing links.
Astrology, as click bait for advertisements, no thanks.

I rarely buy anything in sales these days, I pretty much have all the old games, sold herer I actually want.

Apart from A few recent releases that cane to GOG much faster than I expected, like Greedfall, and Terminator: Resistance, but they haven't reached a low enough price for games I already own on Steam.

I will get them here, like I pretty much do with everything I own on Steam, but i Won't pay much more than £15 for a Offline installer version, which is far more important to me than being DRM free, but as GOG is the only store with offline installers, I get DRM free as a nice bonus anyway.

So I'm pretty much done wirth any stores sale in 5 minutes of checking, nothing for me on any store yet.

Back to my 5th Anniversary Witcher 3 playthrough, seeing as CDPR were kind enough to give me the 6 to 8 month time I will need.
Now as long as Sony doesn't rush Horizon Zero Dawn out on PC, I should be finished by Mid September.

How long will this sale run?

Presumably until 31st January 2020, 2 PM UTC.

https://www.gog.com/promo/20200124_lunar_sale_popular_choices
The timer is at the top of page.

Please refrain from replying to my posts...