i am the first who will buy mass effect 2.
Out of the thousands of people, you're positive that you'll be first.
Stop posting pointless comments, try to spell something correctly, and use proper grammar. I can guarantee that you will not be the first one to buy Mass Effect.
Lets look here. Microsoft is based in the USA. Bioware is based in North America. You live in Iran. Given times to ship it over there, it to even get over there, and for Bioware to want it over there, then consider the shipping times to North America and the USA. Then you have to take into effect the people who work for Bioware.
I highly doubt you will be the first to buy this. It will probably appear in Iran months after it gets to the USA.