Oh, and incase nobody really gets it,.... the long return times at higher levels is Con Artist Games trying to get people buying fuel ($ With real money $) so, obviously, they can make money.
Their logic isn't "Let's discourage people from playing this game for a long time." It's alot more like "If someone has been playing long enough to get up to level, say, 20... then they wouldn't mind paying us a few bucks so that all of that effort doesn't go to waste."
 "Give Up"){kind=icon}
 "The Last Stand: Dead Zone"){kind=icon}