My understanding is that National Printing Bureau has not printed 2000 yen bill for long time, but Bank of Japan is still actively circulating 2000 yen bill. What ever reason 2000 yen bill just did not caught up in Japanese. Although Bank of Japan is trying to actively circulate 2000 yen bill, demand for 2000 yen bill is so low that story has it that there are a lot of 2000 yen bill left in Bonk of Japan warehouse storage even thought 2000 yen bill has not being preinted for so long. Many Japanese has not seen 2000 yen bill for long time and likely place to get hold of 2000 yen bill today is at banks. However, 2000 yen bill is still commonly used in Okinawa because 2000 yen bill has a picture of Shureimon Gate of world heritage site Shurijo Castle in Okinawa.