@DLM, Avenger's right .. when I was hunting a PS3 back in Jan, prices of units that were already modded were pretty jacked up. Since it's something still relatively rarer compared to 360 jailbreaking, there's no "standard" price point like the 24k for the 360 you see in most places.
I shaved off a couple of K's by purchasing an unmodded model then getting it modded myself.