The Kerbal way is to remember that to lower your orbit, you have to slow down, and to slow down requires propellant. You're moving really, really fast in a geo

The Kerbal way is to remember that to lower your orbit, you have to slow down, and to slow down requires propellant. You're moving really, really fast in a geosync orbit, so slowing down to lithobrake your satellite would require a _lot_ of propellant. Conversely, to raise your orbit, you have to speed up. And since you're only going up a little bit, you only need a little bit of propellant.