like the guys said - post the serial in the stick up top and someone from MM will let ya know its birthday as soon as they can (FYI: they're closed till monday morning)
At certain low points in my life, I have pawned my SR5 in order to make mortgage payments. (Payments are small, but my paycheck is smaller!) Most likely the bass was pawned for around $150.00, and the poor sap just didn't pay off the ticket in time, OR...
STOLEN BASS + UNSCRUPULOUS PAWN SHOP!!
Either way, you are lucky, and wise as heck to snap up the bass!