Yeshu: Whenever there is sale on Steam it feels like a bunch of vultures just waiting to get the best deals.
On GoG there is actually a community that helps each other out, sharing gift codes, making list of what game was on sale and when they are starting the list over.
Heck during the last insomnia, correct m if I'm wrong, there was a guy that cracked the algorithm of what game will come up next.
Oh, so it's about the community, I see:) Well, steamgifts.com forums and other internet forums have a similar feel during Steam sales, just not the game platform itself, unfortunately. The Amazong Video Game Forums are really nice too, I started chatting there last winter, actually. Though you do get the idiotic debates over "console vs pc master races!" once in awhile.
For the record I
love Steam Sales, stupidly cheap prices for a lot of awesome games.
Also useful is this site:
steamdb.info