I'm pretty sure everyone on this thread knows the answer to this question.
It's the same as the answer to the question of why we are using a shirt designer that very, very, recent child labour problems. But hey ho, as long as we're making a mint.
If I've got this right (and it's infinitely possible I haven't)
The main problem with the home replica shirt is that Amex's corparate white, differs from the clubs own white.
For a variety of reasons this makes me very depressed about where football is at right now.