In 2 opportunities I have visited the Technology Section of 3 big department stores in Chile (Falabella, Almacenes Paris and Ripley). I have requested to buy even the most powerful and expensive computer they have (either desktop or laptop) but with NO operating system.
After some minutes, the very motivated sales persons come back with sad face to inform me that their supervisors have not allowed the procedure because OS is already installed.
I suggest we organize the Ubuntu Request Day. What's that? Let's ask each ubuntu fan to go to a store one day (same for all over the world) and ask to buy a computer with Ubuntu (Kubuntu, Edubuntu, or maybe Debian installed).
Obviously, if by any case, the store agrees... we may have some excuses already planned :)