[OT] How much is the SF3D Boardgame worth?

What's up, RAAM?

I've got a question about an old boardgame whose subject matter is
popular here.  I recently acquired a copy of the first SF3D Original
boardgame from 1984- It's the TCI translated version and it's still
in the original shrinkwrap.  The shrinkwrap has gotten slightly
messed up over time, but at least I know that no one has ever opened
this box or punched the little counters out or anything.  How much
is this game worth?

Thanks for any insights!