Anybody on the list do office wiring in Central Phoenix area. I have a
client that got what I believe to be an overpriced quote ($135 per Cat 6
drop).

Most places I've contacted over the past few years in the Southwest (CA, AZ, TX) charged around $100/drop.  Most of these quotes were Cat5e and drop ceilings.   Were yours (ceilings) drop ceilings, or drywall?  And if drywall, how accessible is it above to maneuver? I can easily see charging $135 for drywall drops.

We had our offices wired in 2005 w/ CAT6, (100 drops) and it was $100/drop. There were nice plentiful catwalks above for the most part, and it was new construction with no ceilings yet.  We went with the company that was recommended by a colleague which also happened to be the cheapest bid.  This turned out to be disastrous because they mislabeled everything, and the job went over by months. 

I heard copper prices are sliding with the lack of construction, so I don't know how copper prices in 2005 compare with todays prices.

-Ben