Oh my. GOG are running a seriously impressive deal this week, which lets you pick from a library of heavily discounted games. As an example, you'll pay only $2 for The Witcher: Enhanced Edition, while the amazing Defender's Quest, Legend Of Grimrock and Chronicles Of Riddick: Dark Athena are all a mere $3. Factor in the exchange rate and you'll discover some crazy bargains, with games like Alan Wake, Deponia, entire series of Sam & Max and more besides on offer.
"But what's the catch, Jon?" Good question. The twist in the tale is that you'll have to pick five games to check out - no more, no less. You'll therefore need to think very carefully about which games to get, and whether it's really a true saving (buying a game you don't actually want is not a saving, whatever the price). I'd heartily recommend Defender's Quest and Deponia as great games you might not have played, so they're worth picking up if you have a hole in your basket.