My library, Middletown, NJ , just switched to Koha on Oct. 15th. They had a pretty good article about it in there newsletter, unfortunely the PDF for the newsletter is not available on their website yet ( www.mtpl.org ). The summation of the story goes as follows.
There were running Dynix for 15 years and got a notice from the vendor that it would no longer be supported. So they did some research and settled on Koha. They hired PTFS of Bethesda, MD for implementation and some open source development. This cost for the development was split with the East Brunswick, NJ library which rolled out Koha in July 2009. I believe the development consisted of integration with a self-checkout system and a phone messaging system which calls up to remind you of overdue books.
The only other library using Koha in NJ is Highland Park wich was done in September 2008. Since Middletown is the 2nd busiest independent library, I have little doubt that other NJ libraries would adopt a similar system in the future. So yeah, these fellows should be worried. I don't think Librarians will be so easily fooled by this brochure.