This summer we had all our old (1969) single pane windows replaced in every room in the house. Those old windows didn't move easily in their tracks. The glazing was cracked and falling out. Every winter we'd get moisture or frost on all the upstairs windows. Some of them rattled if a truck drove down the street. Each winter I would have to close storm windows. Each spring I'd have to open them up again.
Now we're in a cold snap right and it's five below outside. There isn't a trace of moisture on any of the new windows.