The other review is great at showing you the basic economics of the card in that the Supplier only shines in decks with a large number of resources and / or number of hardware. A big note is that you MAY install one of the hosted cards at the beginning of your turn but you don't have to. Sometimes, you don't have the money or don't want to spend it to bring out your resource but you want it out of your hand. Maybe you have two Liberated Accounts and you install one but want to get the other out of your hand but don't want to pay for it yet. The Supplier has you covered.

For a couple decks that use it effectively: Qimpossible and London Calling.