Thanks for the reply. The city-state content wouldn't be driven by the URL, it would be driven by the city-state that the user searched for. ie if the person searched for <product><city><state>I would want our /product/ page to show up, and show them content in their local city state.</state></city></product>

To avoid dupe content, we are moving away from a model where we have 30,000 pages, each with a separate URL that looks like /prices/<product-name>/<city><state>,  often with dupe content because the product overlaps from city to city, and it's hard to keep 30,000 pages unique, where sometimes the only distinction is the price & the city/state.</state></city></product-name>

We are moving to a model with around 300 unique pages, where some of the info that used to be in the url will move to the page itself (headers, etc.) to cut down on  dupe content on those unique 300 pages.

My question is this. If we have 300 unique-content pages with unique URL's, and we then put some dynamic info (year, city, state) into the page itself, will Google index this dynamic content?

The question behind this one is, how do we continue to rank for searches for that product in the city-state being searched without having that info in the URL?

Any best practices we should know about?