There's a good chunk of games that are 75-90% off at the moment. Those are definitely worth hopping on now, because they'll either not be on the Christmas sale, or they'll be on sale again for the same amount. So, go nuts if there's a game you want with that deep a discount.
But, the games that are 50% or below, eh, hold out. The Christmas sale is a month away and it should be better than that.
[quotemsg=17016520,0,367869]"Exploration sale" sounds like they included a metagame in their sale again and won't list games that are on sale in a neat list... AGAIN!
Looks like steam just lost out on a wallet... AGAIN![/quotemsg]
I just had a quick look at the Steam app on my phone and one of the first things I saw was the ability to Display All Sales in a drop down box so yeah.