First off I have to say if you don't have the OB I would highly recommend it, its only 10 dollars for five of the highest rated games of all time.
Secondly, how and why do you think valve does it? This price is so ridiculously low, if I bought a game off of ebay, I'd pay half of it just for shipping, not to mention I'm getting five games.
Edit: This is off of steam for those of you who don't know, http://store.steampowered.com/sub/469/
Edit2: What happens when you play HL 2 HL 2:1 and HL 2:2? You're going to want to play HL 2:3. Combine that with http://whatsinthebox.nl/ and there is the perfect storm. I can only hope
Secondly, how and why do you think valve does it? This price is so ridiculously low, if I bought a game off of ebay, I'd pay half of it just for shipping, not to mention I'm getting five games.
Edit: This is off of steam for those of you who don't know, http://store.steampowered.com/sub/469/
Edit2: What happens when you play HL 2 HL 2:1 and HL 2:2? You're going to want to play HL 2:3. Combine that with http://whatsinthebox.nl/ and there is the perfect storm. I can only hope