Why can't these go in the armoire?

I bought the Blackbosom set, it won't go in. I bought the Far Eastern set, it won't go in. So on and so on. Why can't these sets, for which we're throwing over a good chunk of money, not go in the armorie? Instead, I'm having to store them on a retainer... that I am paying for monthly.

It should be a no brainer to tag these optional purchases on the back end to allow them to be stored in the armoire?