I recommend buying the US Wii and bring it over to Middle East countries. I am sure you will have no problem buying grey import US games there, as they are amonst the first to release new games. Failing that, there is the Amazon.com.
Well its his choice (cant say I'd like the idea though if its all true), though i used to know a very wealthy family who had a home here in the UK and in Iran (weird combo of countries, i'm suprised its allowed) and they seemed to like both countires equally.
Basically i dont see why they wouldnt have Wii, I actually think you'd be better off not getting a united states console though, I'm pretty sure there's a US embargo on Iran, so if you order anything off the net from there it might cause issues.
I was thinking about buying one here in US and then buy a voltage converter and take it there but then I found out games arnt the same which made me think about just buying one from Dubai or Tehran, iran.