I want storage boxes in all of my residences, but it isn't worth all of that CP. Can't you sell us more boxes? Perhaps it was a programming issue on the back-end that made it easier to program a method that only allowed for a singular P2W storage box. I'll say more about this general subject in a follow up post. edit: can't. it says "please write your post", even though I'd written the post.
I agree, it's really annoying that players can only buy one cash shop storage container, especially since we can buy 8 of the cash shop farms, which are also placeable. They should bump the Premium Storage Container limit to 10 per family IMO, which would cover the maximum number of residences and manors combined. I'd really like to have a storage container in each of my homes as well, for the convenience, but no way do I want to tie up all the CP in storage containers when I can just swipe.
I made the same complaint last year, and the 1 storage container per family policy is still just as silly now as it was a year ago. There's no drawbacks, and they are just leaving money on the table.
Why though?