My baseline for a game with solid cosmetics and a good cabinet with correct legs is $250 non-working. I adjust down from there depending on cosmetic condition (not dirt, but missing artwork, replaced coin door, angle iron cradle, etc.) or missing units/coils/etc.
The title does matter, though. Some get a $ jump in my head due to features, rarity, or etc.
It also depends on your part of the country.
County Fair is the first OK game and has one of the best Bally art packages (in my opinion). A fantastic Magic Screen game.
Ballerina is the only game with the 1-7/7-1 feature and has one extra section on the screen compared with every other game but Sea Island. I lose on this one quite a bit.
Miss America was incredibly popular - so much so that there are four different versions that Bally created. Which one are you looking at? I prefer the original, Miss America '57.
And Manhattan is a 2 card game from United. Many of their popular features of the time are present, along with the ability to score on both cards independently. With Lite-a-Name and select-a-spot, there are a lot of ways to win.
One thing I've found on United games is that the extra ball feature is a lot tighter than comparable Bally games.