Well if you can find someone in another region t buy it for you, then that is one way of getting it. If you have any other games you may be able to trade; lots of people got silent hill as holiday gifts during the X-mas event and they couldn't trade them away for the reasons you mentioned (bad port, buggy, etc).
thanks for the update
So there's no other way to get the game beside asking friends from Europe to buy it right? I can't see the game on other digital distributor such as Gamers Gate.
Then maybe i should opted for Alone in the Dark (2008) as an alternative. I'm need some 3rd person survival horror game, it's one of my favourite genre. But not many game from the genre available for PC today.
Well friends from Europe or US (though it is much cheaper in the US). Also try to see if anyone in the trading forums has a spare copy (as I said lot's of people got them from the holiday pile, though I only got coupons and coal which gave me even more coupons). If you are willing to buy something off steam for them just state how much you are willing to offer and see what you get. You never know :)
You can try the official steam trading forum @ http://forums.steampowered.com
or the steamtrades forum @ http://www.steamtrades.com
(note the latter requires signing in through OpenID via steam).