You know a once-subcultural event has fatally passed over the point of capitalist no return when a U.S. government agency tries to get in on it. And so, in a far, far corner of the San Diego Convention Center, the U.S. Postal Service has set up a booth, in order to peddle wares to the ever-growing contingent of fanboy stamp collectors. I’m not kidding––Star Wars stamps are a huge deal. The gentleman I spoke to at the booth told me that when this series of stamps were released last year, they almost immediately sold out.

Whilst, technically, you could use a Luke or a Leia to mail your gas bill, due to the shortage of supply these 41 cent treasures are regularly selling for $12-15 on eBay. The booth also displays a number of comic and superhero themed stamps, including a box set of DC comic characters immortalized in postal currency.