Okay, calm, everyone, calm. I am pretty sure that this DLC is just extra skins, weapons, and such for multiplayer- the art book DLC pretty much confirmed that. If you don't care about that, then just don't buy the figurines. They are not holding anything of true value to the game back from you. You will have a lovely time in Mass Effect 3 and get the full experience regardless of some figurine.
And the figurines are physical things. The DLC will just be a little code on the bottom or something. You're buying a figurine that just so happens to come with DLC. Woo. If you don't want that, don't bother.
Just. Calm. Please. So much Mass Effect 3 whining... Can this game just come out already so it can stop?