Station Cash probably falls legally under the classification of gift cards. If a company sells gift cards and they don't get used, the cash involved is legally supposed to be sent to the state, just like with unclaimed payroll checks, "lost" bank accounts, etc. The idea is if a consumer loses track of such assets, the beneficiary should be "society as a whole", not the company that lucked into being the one holding the paperwork when the asset was lost. Most state governments publish lists of such assets where the name of the last owner is known, allowing them to be reclaimed for a limited period of time.
Otherwise the funds go into a general fund which can be used for essential purposes to benefit society, like new drapes for the governor, pay raises for hacks and cronies and other necessities.
So, NO, I don't think Sony has completed the transaction by issuing SC in exchange for a customer's hard-earned cash. The SC is the equivalent of a gift card which has to be used for some real or virtual benefit before it's a completely done deal. I also think a case could be made that if someone "buys" SC during a period where Sony is offering some in-game "good" for a limited duration (like discounted bags) then the buyer is entited to return the SC and get his real money back if those virtual goods are not provided. Sure, the connection cannot be shown absolutely. But as an example, if SC sales tripled during a weekend where Sony offered 40-slot bags for 90% OFF, I guarantee you a clever attorney could make his case that most of that growth was tied to the short-term deal and if the bags aren't made available, refunds are definitely due.
I guarantee you the Good Wife would get you your money back!
Edited, Dec 3rd 2013 5:10pm by Sippin