Fathom was my first pin, I think I got it around 2002, paid less than a grand for it. Is it worth it? I've owned a bunch 80's bally's, all the ones the op mentioned and Fathom is my favourite by a wide margin because of the combination of art, sound and game play.
Whether it is worth it or not is entirely up to the person spending the money I suppose. My tastes have changed in the almost 20 years I've been collecting pins and I prefer newer games with more to shoot for and deeper rules but I'll always have soft spot for Fathom.
I carried around my original Fathom playfield for years and years hoping to do something with it one day... I ended up selling it and then acquiring another one shortly after to complete a Fathom project I had long since dreamt about... I hope to have it finished in the coming weeks and then I will always have a Fathom at the house, it just plays a little differently than the original
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