He paid for the camera with tips he had been saving up.  He paid me in $1 bills, neatly folded in half and rubber banded together in stacks of 50 - $700 total! 
  Touching.  With such a moving story, I'd be tempted to just GIVE him the camera.  I WOULDN'T, of course......but I'd be tempted.  Unnnnh, maybe not.  He probably won that money in a rolling crap game.  Did he seem a little 'shifty'?  Thought so.  You should have hit him up for an extra $50.

chas