Inventory is at a premium

[Tabmow]

There's been quite a number of threads explaining this already which explains that saving the data to the back up servers is roughly 15(?) seconds at the moment in case of rollbacks, crashes, etc (was mentioned in the Liveletter a week or two ago).

Having more inventory/retainers would slow that process and hence they made extra retainers for 'premium' to deter people from possessing too many retainers.

This is the coolaid drinking excuse.there is no reason apart from having to pay cash for extra retainers that exists in this game.