Patina is good for Colonial Furniture (to a point), guitars (as long as its real and not relic) and cars with original paint (not fake rust stains sprayed on). I don't like patina pinball, its usually Tar from a million smokes, drink spills that got past the beer seal, worn to the wood players and impossible to duplicate complicated playfield graphics.
I have seen a lot of woodrails that have nice patina, in the,duh,wood.