I bought my 06' with 70k on it in 09' for $20.5k from a Toyota Special Diagnostic Tech. Absolutely loaded (nav, v8, 4x4).
I also spent 2months looking for it as I only wanted Shadow Mica or Black. Search AutoTrader, craigzilla, local publications, EBay, cars.com, ove.com (if it still exists and you have a dealer as a friend), auctions. I also cross-checked with values in NADA, the Black Book (what dealers use when they buy trade ins), Manheim auction prices.
I figured I probably saved $4k two years ago. I would not be a happy camper if I had to go through that process again!