my where's george bill hit rate is still low compared to others (right now, around 5%), but the comment on this bill is interesting: One Dollar Bill, Serial# B4196---9A Series: 2003A
other significant hits i've gotten:
first cross-coast hit
first international hit
first hit in 'the south'
where's george is an interesting experiment on circulation of currency (read: a strange hobby). it's not like "big brother" is going to be tracking my every cash expense now, as bills trade hands dozens of times before people enter it into wheresgeorge.com.