Ethnographic weapons are unlike those found in Western cultures. Whether due to lack of technical expertise in modern weaponry or limited resources, the indigenous populations of these often primitive cultures developed unique weapon types which maximized their effectiveness and utilized local materials. Unlike the Europeans, who often shared their technology and artistry with trading partners, these cultures usually had very little contact with the outside world and, as such, their weapons were often unique to their specific geographic location. One could easily amass a large number of pieces and all be of different form. Currently, most ethnographic weapons are more affordable than American or European weapons because they are not as widely collected.