I've got a Super Spin. Don't be put off by the roto target and vari target - both relatively simple to get working.
I enjoy playing it. If you are coming past Sydney, PM me and you can come and have a play on mine.
Like the others have said, no such thing as a dud Gottlieb EM if the price is right and you are happy to have a fiddle with it.
I concur totally - For the right price, any Gottlieb em is worth owning. If it is a package deal, you have a project game and a GREAT playing machine in one hit.