1977 big rig electromechanical pinball machine and wondering what is the value?

[kattroll]

I have a 1977 Big Rig electromechanical pinball machine; I believe it still works and I would like to know the value of this machine; It is in very good condition.
Thank you.

 

[Mousemonkey]

Wrong forum/website.

 

[kattroll]

Best answer selected by kattroll.