Often in the Morgan series, BUs cost just a few dollars more than AUs, but this issue is a real exception. About Uncirculated silver dollars boast original mint luster, but have just a trace of wear at the highest points of a coins design. The 1889-O issue is an excellent deal with our AU price less than 25% of what you might pay for Brilliant Uncirculated quality. Why is there such a big price gulf between AU and BU for this issues? Strictly graded Uncirculated quality is very scarce just 2 or 3% of the original mintage may survive in BU quality today.