Miami

I did a quick search on three more cities; Denver, Dayton Oh., and Miami and the best pricing so far is Miami.
The high, low and average for 2002 is: 22.6k, 12.8k, 16.3k

For 2002-2006: 36.9k, 12,8k, 24.6k.

The prices for MDX in Miami are not just a little lower but significantly lower, an example is a 2005 with just over 11k miles for 29k, it is a one owner and Acura Certified. The same car in Seattle is not available but the next best one is an MDX Touring with 15k miles for 38k, or a private seller has his for sale for 36k with 14k miles.

These vehicles and info can be seen on Autotrader.com, go to the Used car section and place Zip code and details.

Zip for Miami is 33122, for Seattle 98101, Portland 97086, Oakland 94601, Anaheim 92804.

Phoenix, Denver and Vegas were not that impressive for volume and pricing.