Ziad87 wroteI have a feeling that Google are purposely limiting it's availability. The only two reasons that immediately come to my mind is that they are having problems in production or they fear alienating their business partners like Samsung and Asus.
Google isn't in the business of selling devices. They are, and probably always will be, a software company. The Nexus line has always been a showcase of the capabilities of newer versions of Android. The last line (Nexus 4, 7 and 10) seems to be more widespread than its predecessors, but still, I don't think Google wants to make any profits from it.