My parents house in PA is cedar single as well - built in 1987 and still looks great (pic taken two summers ago - not a great image). A few wood pecker holes here and there. We built the Nova Scotia house around 2000 I believe. Neither sidings have been touched since construction. NS shore gets a crazy amount of abuse from the hurricanes and major storms that come up in late summer every year. Lots of damage over the years, but the cedar holds up well. The PA house has a stain on it (that I painted one summer in high school) and the NS house is natural. Odd thing is some of the bees like the stain and have been taking it off over the years. I prefer the natural.
Second pic is of a small building we had moved to the NS house property this year. "Old Snorer's" cottage that is around 100 years old. Hard to say if that cedar is original or not, but it can hold up for a century easy enough as seen throughout New England and coastal areas.
The house I live in now is hardiplank (last pic) - it's nice and seems to hold up very well, but it won't compare to cedar in terms of looks though IMHO. The hardiplank on the house I live in now was reused from the main house next door when they remodeled - still looks great.
The NS house is available for rent in the summer. Just let me know!
It's located about 10 min from Lunenburg and very private setting. It's a good two hour plus drive to Cape Breton. Has beach access as well and an "off road" golf cart with surf boards, etc.