The go it aloners
For every Library that contracts with a support company to get Koha installed and migrated, I estimate there are 4 who go it alone. It still amazes me how many Koha installs there are around the world.
On the mailing list we usually only hear from those having issues, its not until you do trawl around the net a bit that you discover how many Koha users there are. One of my current favourites are the public libraries of the Philippines. The National Library there is rolling out Koha to every public library in the philipines. That is a lot of libraries, all done with inhouse support/expertise.
So well done to all those users who do it themselves, pop on the mailing list or irc sometime and say hi.