While I recognize their utility, economy, flexibility and certain pleasing aesthetic, twice I have come to within a hair's breadth of dying on the water. Both were in canoes. In winter. Never, ever again.
KG - I would be interested in the story. Anyway...winter canoeing (and Kayaking) presents it's own issues in the north country. The key to survival is to dress for immersion. Yeah - it's another big expense if you're going on cold water, but a good dry suit (as much as ~$1k) is worth every penny. That, and some good synthetic insulating layers, along with the suitable personal flotation, will keep you safe in the coldest water that you might float a boat or your body in.
Kokatat is the recognized leader in dry-suits. If you want to paddle year-round (and thereby get the most out of your boat investment, and stay in paddling shape), it's money well-spent.
