I bought XCOM, though rather predictably it ends up in the encore sale at the same price, meaning I could have tried the demo first. It doesn't matter though, I've hyped myself into game, so I can't imagine I won't enjoy it. To anyone who bothered to reply, thanks for the help. I just needed a few people to push me into buying it.
The encore deals are a little underwhelming, comprised mostly of the big titles. The only one I'm vaguely interested in is The Stanley Parable.
What was the best deal on The Stanley Parable during the sales? I might bite at 25% off, but I'm curious to know what was the biggest price reduction it received.