Were there any price bugs this sale?

I think that Valve called a pretty good exterminator this year.

all games on sale were free for 48hrs,were you sleeping or something?

CS Complete was 80% off for a few minutes, haven't noticed any others.

Bugs? I'd have settled for a good deal but there we are...

Except those 100%+ off which weren't purchasable, Super Meat Boy (95% off) and Overcast - Walden and the Werewolf (98% off). I am not sure those 2 were price bugged though since SMB lasted long and Overcast is still up.

I think one of the Commandos games was 105% off at one point but I don't think it was purchasable like that.

Edit: still -$0.21/105% but not purchasable standalone, only as part of the Commandos pack which is 80% off at $2.59

And the community vote games got 20% higher discounts than advertised once or twice though that may have been intentional.

And it's not a bug but for Lichdom Battlemage to be 75% off right now is rather fantastic for such a new and good game. (for the next 14 hours still anyways, then it's probably back to 66% off which it was most of the time during the sale)

Galactic Civ 3 was 60% instead of 50%.
Some music software after losing voting went to 90% from 40% instead of 50%

Impretty sure there a glitch I'm forgotting, but it wasn't anything major either.

Sacred 3 was 75% off for maybe a few minutes, when the flash sale came up. Then it went to 50% off. I managed to grab a copy.

Kings Bounty: Dark Side Premium Edition went 75% off, but the vanilla game was 50% off. Not sure if it was a pricing error, but they have the games listed in the wrong order on the store page, making the Deluxe game be considered the vanilla, for sales. They could have been reversed or maybe they were both supposed to be 75% off.

war thunder mega pack 60% + 90% off in indonesian store for few days, they missed one "0" so its only arround $5.5

Payday 2 GOTY was 75% and then went back to 69%.

MAGIX Music Maker 2015 Premium - 90%

GMG had Tales from the Borderlands for $5 for a very short while the other day.