You might want to read the post on the "geotour costs" forums...
"There's a bit of a controversy about one that just got published near Atlanta. City of Duluth, Georgia decided to put one together and it's been a royal disaster. First, they managed to get numerous valid caches involuntarily archived...even some that were not within the city (or even the same COUNTY). Then they published them without even having PLACED many of them. The locations of many of them were questionable (I hear one was a fake beer can outside a convenience store, another on an active construction site). Coordinates were off by a huge amount on several. No kick-off event was ever organized. No hints posted on any of the poorly written cache pages. No marketing materials were put together to promote it, no reward (coin, certificate, etc) available for those who complete it. And apparently the lady to set it up isn't available for people trying to contact the city about it.
Frankly, I was quite shocked to hear that basically GS could be bought to archive other peoples' caches with no apparent recourse and the end result be such a total failure. Quite disappointing and I hope the information I've seen about it is inaccurate...but several folks I talked to at an event last night were directly affected and live in the area, so I tend to believe their story about it."