My only real problem with starting up minecraft would likely have to do with my problem with Animal Crossing.
My girlfriend LOOOOVED Animal Crossing....
and I really enjoyed it too.... except....
I made myself a kickass house I liked.... and I was happy with it.
I upgraded my house once, and I had everything I needed... heck I had everything I wanted.
I was content with my virtual life... completely.
So I was done.
A bigger house just meant i'd have to fill it with stuff I didn't like as much just to fill the rooms!
More clothes just meant I had to change more often to make use of the stuff I didn't like as much!
Even MMO games are built around the wolrd being a part of you. Rather then you being a part of the world.
I have no desires to live like a king. More just like a middle class person with a maid.
I suspect in minecraft i'll build myself a modest little place and be happy.