OK, I'll nibble at the bait!
Because the Willits brothers built their canoes to such exacting standards, they are more difficult for the moderately-skilled woodworker to repair well than a wood-canvas canoe. Shoot, half of the mistakes in a wood-canvas canoe are hidden by the canvas! In a Willits, everything is there to see. It would be interesting to compare the % of each builder's canoes that survive. I'm aware of around 200 Willits canoes that are around, in various conditions, out of less than 1,000 built. So ~20% survival. I know that there are lots more out there, and more come to light frequently (like Brad's #813). How does Old Town, or any other builder compare?
Willits canoes were built for, and used by a wide-ranging clientele - from huge rental fleets, to scout and summer camps, to modest-income owners, to the country's elite. The brothers made a successful living over the course of about 50 years with their canoes, so I guess they met enough people's needs! I enjoy my Willits, and my Old Towns, and have had to repair them all from time-to-time. I will not set foot in a Coleman...
I was going to, but on second thought, I'll not argue about the merits, longevity, or repairability of any material or construction method for anything with anyone. After 20+ years of home ownership I've accepted that nothing lasts forever, I usually have to pay someone to fix it correctly, and there is always someone touting the next best thing that may, or may not, be. As with canoes, it's really a dust-to-dust thing!
And, Brad - glad you got the Willits. To look that great after 60 years - wow!