Now, first and foremost, it's worth bearing in mind that Blizzard representatives have suggested pretty strongly that the in-game store will launch, initially at least, on Asian servers only. So, it's possible that this might not be a problem for US and EU servers. It might never be a problem, or at least, not for a while.
Nonetheless, Blizzard's devs have thought of this. While you can't click on it to open the menu any more -- you can just hit Escape instead -- the tooltip showing this useful information on mouseover has been rehomed, and now lives on the red question mark -- the customer support icon. Don't look at my numbers, though. I know it's bad.