Our Hoarder is running a black market. For one thing, his Hoard makes a distinction between "the good stuff", which it wants back, and the mundane shit which the Hoarder's allowed to trade in, in order to acquire more of "the good stuff". I mean, the Hoard's contents did get there somehow. (In our game, it got there through the collecting actions of the long series of people whom the Hoard has, one at a time, psychically attracted and made into Hoarders. The PC Hoarder is the latest in this line.)
Also, he's got Sticky Fingers, so he's happy to give items to people on what they think is a permanent basis.
He has gotten armaments out from the Hoard, but it hasn't worked out that well for him. I don't think he ever got to fire them more than once, and then they got taken away and he's spent the whole game trying to get them back because the Hoard WANTS THEM BACK. Which has been awesome.
I think the playbook is designed for the MC to constantly put pressure on the Hoarder to solve problems by getting stuff out of the Hoard, and thereby risking the Hoard's hunger, and then taking the stuff away so that the Hoarder is forced to dare more and more crazy things in order to get it back, to appease the Hoard...