I am surprised this isn't a thing, considering what a common approach it is for communicating incentive. Currently the situation is quasi-secrecy, which seems to defy the idea of promoting subscriptions: Now imagine if anyone was able to at least browse this: At any time you would have a convenient, detailed overview of all the nice things you could pledge for if you subscribed. One cynical guess would be that maybe it would take extra effort to implement a logic for blocking those items from general purchase, based on subbed-or-not, but on the other hand there already is a logic in place for listing items but blocking them from purchse based on various reasons, e.g. the Swarm or website minigame unlocks. Should be easy enough to implement it based on account status. (Instead of the 404 error one probably gets when following such a link.) Furthermore, you could make it even more visible, analog to the Chairman's Club packages and such, by adding a visual tag to Sub-exclusive items and adding them to the listing of all items. (Although then people might want a checkmark to not have them shown among those they actually can buy without subscription.)