Nigeria is a HUGE country with a lot of gas and oil. So much in fact that it lights up gobal pictures of earth from space. its likely the most important country nobody ever pays attention too, but they have had a huge raging debate over their money and therefore their economy. http://allafrica.com/stories/201209020236.html
See this topic started just a few days ago. Well, I don't know if such a "high" denomination is actually needed in Nigeria. A 5,000 naira note is about 25 euro or 31 US dollars. Problem is that there are relatively few people in the country who would not consider that to be "much" while for others even 1,000 is a lot: http://www.aljazeera.com/video/new/2012/08/2012829124349263870.html Christian