Not for business use but...
If your an average punter you could just buy a digital copy and pretend your from the states. My win 7 copy was purchased like that, Its probably breaking some tax law or another but sod it, then you just pay the value based on the current exchange rate..
call me stupid but apart from the obvious reason for not doing this for everyone, Greed, whats stopping them or? is it just Greed thats stopping that?