Quoted from JEFFPINS12:
you bet centaur is overrated , after running 7 arcades in the 80s in various parts of California , centaur was a terrible earner . Repetitive sounds and no-fun gameplay . A real clunker for my techs as well , but by all means pay way too much for it because it's old and has a cool color scheme. It's a $1000 game at best , and that's only if u want to waste a grand . Much better for the money out there , that game was a mistake
So based on what you just said the following games had similar issues (poor earners, lots of upkeep) and should only be worth a grand:
TZ, CV, SC, STTNG, etc...
It doesn't matter at all if it was a poor earner when it was released, or was a PITA because it broke, all that matters is what someone is willing to pay for it now.