Don't worry about becoming a Polaroid Junkie
It only affects your health in a positive way (or at least makes you smile)
And since they're big, you usually limit your collection to a smaller number of cameras!
I don't know if you have an SX-70, if you do, check out the Serial Number calculator
http://www.rwhirled.com/landlist/sx70sn.htmBy using it, I found out that I have one that was "born" on December 19, 1974 during the A shift.
It's younger brother's birthday is on November 15, 1978 also during the A shift.
Just more useless fun stuff to know
Hope your polaroid only needs a fresher set of batteries.
Enjoy