Crossbone Gundam X3

Never read the Crossbone Gundam series and cant really see the difference between the X1, X2 and this X3. MAHQ goes into the details under "technical and historical notes" so you can read about the differences but Im not too sure if Bandai are going to reflect these differences in the GFF version. Wondering whether its worth getting if its just a change of colors...
Those who still want to pre order it now can do so at Amazon for 3,670 yen.