ROGETRAY wrote:Interesting question/perspective.
I cannot personally answer for this policy/reasoning, but I'll forward this post onto other staff and see what I can find out for you! 
Thank you so much! As I said, there may be a reason that only the one shirt is available for back-order when another four in the same color aren't, but I just wanted to make sure that it was a deliberate decision to allow one to be back-ordered and four not, rather than just overlooked.
Muchly, much appreciated!