It was limited to the first pressing, same as pink & green... I don't think any one of them is especially rare compared to the other two, but when they came out you were only guaranteed to get a certain color if you bought it in person. Those of us who got it online got one of the three randomly. So it was hard for fans to get all the colors.
EDIT: Got my Tenso box with the CDM Blu-ray and the TA tour & a-nation stuff I ordered
eeeeeeeeee!
