City of Heroes or City of Villains, Lineage, or Lineage II player, then you'll be glad to hear that our friends over at GoGamer have a great sale on NCsoft time cards going on now. (We'd assume they'll work on Aion as well, considering their site lists these cards as being valid for Auto Assault....)
Right now, you can score two months of prepaid game time for the seriously cheap price of $18.90. While there is a shipping cost, the charge becomes very minor compared to the overall savings when you stock up on multiple cards. Of course, if you don't really want several months of cheap game time, you could always go in on an order with friends - or just send them to us. We'd gladly take any spare pre-paid time off your hands. Expensive robot minion replacements and all that, you know.