As far as I know (atleast for the 2-Disc Versions) they're excl. to some parts of Asia.
It seems some are still available through amazon India.
#1
http://www.amazon.in/Lord-Rings-Fell...ings+steelbook
#2
http://www.amazon.in/Lord-Rings-Two-...ings+steelbook
#3
http://www.amazon.in/Lord-Rings-Retu...ings+steelbook
But I don't know if they ship internationally. The only member form India I know is
Rashmeet. He's a very friendly member. Maybe he can help you out, it may be worth a try.