Guys, that has nothing to do with inflation.
It's not true that there are lot of buyers but not so many seller. Trade chat is full of people trying to sell MS for 550k, 600k, 700k, even 800k. They are just trying to get more money from players that maybe don't know the right price for stuff or needs MS. There are people "WTB MS", there are people "WTS MS", but no way second are more than first. So, this cannot be inflation, cannot be anything economy related.
That's how I see this situation.
Maybe inflation is the true reason in blue server, but not in Red Server.
I repeat myself from page 1:
The very next day. I swear.
That's not inflation.
However, I don't use MS so this problem doesn't concern me, but I can see why people is annoyed.