I've always thought about doing something like this in the Midwest US, but was always a bit nervous about condensation damaging the components over time; did you run with that sort of setup consistently, or only when pushing high scores? Ever run into issues with components failing?

That was 25 odd years ago, less sensitive hardware and cheaper... Nothing that failed though, did have some sketchy moments with condensation yeah :)

Not consistently, I did start using petroleum jelly till I upgraded and found out that wasn't very fun to clean up.