I think they're just trying to 'encourage' you to buy it on Steam. They make more money that way too y'know
Ahh, but Portal is awesome; For me the best game in the pack!
I actually went out and bought it! (And they think piracy COSTS them sales...)
So now I have a licence to play my Pirate (Arr!) Steam-free version of Portal! \o/
And the box is still in shrinkwrap so I can sell it easier later
I wish I'd played EP2 before playing Portal 'tho... EP2 SUCKS if you play it right after playing Portal
It's the song. It just won't get out of your mind!
I kept humming it through the course of the game "This was a triumph! D, Bm, D, Bm..."