I have decided to research. I have learned a lot since looking into star serial number paper currency. I have always loved star bills, as some call them, but now I understand better how their value works. Star serial numbers are created when a bill of a certain serial number has to be destroyed because it had an error. Since the government doesn't allow the same number to be used twice, a star is added instead of the letter that was once there.
This can create added value in this bill but not always. $1 notes, most certainly modern ones, are more common to occur and be found. Mostly because $1's are printed more often. But a fancy serial number, ex ME10101010* could pack a premium. $5 notes are made less and happen less often. Older dates are more valuable and fancy serial numbers (lookup a few) are more valuable. Condition of course is a factor.
If you have a star note and are curious if it might pack a premium or is rare...look it up at