Don't you feel silly sometime when you wan't an INT hero, and you click on the taverns at the bottom and realizing "Oh silly me, Icefrog put the INT-taverns in the middle for some odd reason that no one really understands."
Think about it.
It goes STR -> AGI -> INT pretty much everywhere. Treads, Attributes, Playdota.com/heroes..... and that's about it.
It makes more sense to make AGI in the middle, and not the bottom.
So, Icefrog, please re-arrange the taverns again, thank you.
TL;DR: Switch position with the AGI and INT taverns.