Well, the store I usually go to for my gunpla needs didn't have the 2.0 Gundam in stock, though they did have the 2.0 G3 and MKII in stock.
I wanted to try something a little more recent so I bought a Buster and finished building it about an hour ago.
Btw, the MKIIs they had had different box art. Can anyone explain the reason to me?
This
and this
They have 2 of each in stock.