Stop pointing to SC2 and comparing the NA server to the SEA server. There are several reasons this comparison is unfair:
So yeah, please stop comparing this to SC2.
Your rant here wasn't particularly useful. Sure references were made to how SC2 plays, but in general we aren't comparing the games to one anothe, simply the servers that blizzard set up for SC2, and how they will/wont be used (by blizzard/the community) for d3.
Where do you get your information on where these new servers will be and where they won't be?
Sometimes explicit, sometimes between the lines, and mostly from keeping tabs on what blues say and putting 2 and 2 together.
What we know from blues/site updates - Countries from the SC2-SEA server have been defaulted to NA:
http://us.battle.net/d3/en/forum/topic/4175551303 / http://us.battle.net/d3/en/services/auction-house/regions
From this + the facts that they've set this subforum up, and that there is no sea.battle.net/d3/en, we can infer that there is no SEA-server to join.
RMAH wise - Australia can use its currency, in the NA auction house, as said here (Not explicitly, but its an easy inference to make, note the words currency CONVERSION):