pricing advise
 

I'm going to look at a 2008 SR5 4wd V6 tomorrow.
It has around 30kmi, and the dealer is asking $24,900.
It has no hitch, which I'll have to add, and is supposed to be spotless. Btw it's Blue, and I've been looking for a blue or red 4Runner in my area for months....this is the 1st available. What should I offer for it? What's the bluebook?
It's a certified pre-owned so it had the 100kmi warranty on drivetrain and engine. Thanks!!