Lego 4483 AT AT Which is rarer the Blue or Black box sets?

Same piece count just different colored box and instructions?

 

Am I missing something?  Not  a heavy Star wars collector but picked up a nealy complete with instructions "black" version.

 

Missing about 7 parts at a replacement cost of about $8.  All figs included.

I think blue boxes came after the black, this may make it rarer as people would have already had their AT-AT.... Maybe people Collect black version over blue and vice-versa, 4501 cantina also came in both coloUrs.

I would say that the sets with the black box are rarer than the sets with the blue boxes. Another set that has this feature is the 4478 Geonosian Fighter. The black box versino was released in 2003 while the set was re-released in 2004 with a blue box.