Idk, I think there are moments where certain things get better and others get worse. Like I don't think cabinets were nearly as solid and well built as some of the ones from the 70s but the 90s cabs are definitely better than the cabinets Bally made in the mid 80s. Williams flipper mechs got better over time. Bally got worse. I thought Bally had a great idea with how build pop bumpers to make them easier to service in the early 80s, but Williams stuck with their original design in the 90s.