Most of the data about the keyword + "near me" keywords came from GA - or its integration with the Webmaster Tools. This means I've got data about what the keywords are, where, and how many times, we've been in the SERPs, the # of clicks, & the click-through rate. Of course, the CTR is not super useful for comparison with other keywords if they're not at the same position in the search results.
Is the idea of running a small PPC campaign to see how well the "near me" version of a keyword converts vs. the non-"near me" version? That seems like a good idea, (I'm fairly new at doing any active SEO or Keyword Research). Once I've got that info I should be able to see if it's worth devoting resources to tracking "near me" - heck, I could even add a few geographic areas as well, so I would see how "tire repair near me" compares to "tire repair" compares to "tire repair nyc."
Thanks for the insight.