BTW- the foiling A-cat seen in my avatar is 34 years old- epoxy/tortured marine plywood: going strong. In contrast- See the old Tornado discussion ongoing- fragmentary boats not worth restoring or messing with.
Gougeon cold moulded cedar tornados are still good, 30 years later. It is not the boats, it is the building methods and materials. Not many polyester/glass A cats from that era is still in use. Wood is an excellent material for boats, but time consuming and as such uneconomical for manufacturers.