Congrats. You have a KILLER game.
I have owned both and Centaur is here to stay.
Fathom is a great pin. Beautiful art package is a big part of it's high ranking. It's a good player, just not my favorite of those classic Ballys. Even though I really dig inline drop targets, I didnt think there was enough going on for me, especially when it sells for as much as it does. Plus my space is limited. There are other pins from its era that have a little more going on, but at a nicer price. Thus, it was a no brainer to let it go and eventually find other Ballys. Would I own one if I had the space? For sure! I just think there are better options in that era.
Between the two, I think Centaur has much more going on.
- 5 ball multiball, various ways to earn and stack, plus auto launch
- hit two banks of drops in order
- inline drops WITH captive ball (and two ways to hit this shot, one more rewarding than the other.)
- upper lane change
- in/out lane change
- outlane ball save gates
- magnet ball freeze
- Awesome art and sound package, with voice REVERB, plus it taunts you!
Centaur has some great rules applied to every part of the playfield. Every shot is connected in some way if that makes sense.
FWIW, I think Flash Gordon is a good one to seek out if you're looking to pair up some '81 Ballys. It's also loaded with features. More than Fathom, but at a fraction of the price.