If you're looking for a game that tells you what to do and gives you a story then don't buy it. This is a game where you get out of it what you put into it.
If you want to be a cigarillo like that cocksucker demi then you can buy it at Gamestop (it's $5 there if you can find it in stock) and then create a gamersgate.com account to link the game to. If you ever want to reinstall it you can either use the disc or you can download it from gamersgate.com.
I prefer Steam, though.