What's the single most expensive thing you bought during the sale?

Trackmania 2: Canyon for 10€

Under the Ocean, at €1.24

TR 2013 for $11 or so

I think RPG Maker.

Dead Island GOTY 5€

Just Cause for 0.27 x:

25€ Steam Wallet funds. They weren't even discounted.

chivalry £4.74

That would be Skyrim, of course. )

Tropico 4 Collector's Bundle for 5.59€.

Train Simulator 2013 Deluxe for 169 rubles

$14.99 - The Elder Scrolls IV: Oblivion GOTY Deluxe Edition

(I was hoping for 75% off, but that didn't happen -_-)

From Steam directly, it would be FF7 at $8.03.

From trades, I got Prison Architect for about $12 worth of TF2 keys.

Fallout New Vegas Ultimate Edition, The Witcher 2 and F1 2012 for $4.99 each

~$35 for Dawn of War Franchise pack.

Skyrim LE for 23 euros

Evoland for $7.49

Half Minute Hero for $2.49.

i got 3 banned (in germany) games, so its pretty much priceless

Civilization V Gold + Brave New World twice, once for myself and once for a friend. (60 euros total)

Civilization V Gold + Brave New World. Twice. Once for myself and once for a friend. €60,-

Kerbal space program 40% Discount

Antichamber for just over £5. And I don't even get to keep it. Y_Y

$30 Sonic Hits Collection.

Fallout: New Vegas Ultimate Edition for $4.99!

Played the shit out of the game on 360 a few years ago, but didn't play the later DLC packs (after Lonesome Road), so this was a pretty damn exciting buy for me.