While growing up, I played my friends HUO 1977 GTB "Big Hit". I want to get a similar GTB machine. There is also the GTB "Play Ball" which doesn't have the extra flippers and drop targets. There's a seller on eBay that has the GTB Home Run machine, and 580 units were made as per ipdb.org and he's asking me to tell him what it's market value is worth.
Here's the redirect link http://tinyurl.com/95nsusa to the "Home Run" machine.
I figure I might be able avoid shipping fees of near $500 if I buy locally.
Thanks for your feedback.