Irrespective of whatever the premium value that a star in the serial number may add to the overall current value of the note,
that with high face value Notes, the continuous downwards pressure that inflation has will force the real buying value downwards year on year.
This Note was issued 12 years ago, in 2009.
With assumed average inflation rate of 2%, the buying power in 2009 is only $78.85 today.
For this reason,
much better to consider One Dollar star Notes instead. The loss would have been 21 Cents, not $21.