Sez the guy who has never restored a fiberglass sailboat.
have you restored a wooden one?
Worked in a boat yard for a few years in college. Fiberglass work and restoration is a messy process, especially when the awlgrip or gelcoat need redoing, but generally unless a boat has sat neglected most well cared for FG boats (hauled yearly, waxed, bilge kept dry, etc.) need very little *real* maintenance outside of basic upkeep. We had a lot of 1960s and 1970s era 40 footers that were a cakewalk compared to the occasional wooden Hinckley or Chris Craft and others that came in
Even a well maintained wooden classic was a lot of work. When hauled on dry land the wooden planks would shrink, making the boat basically a porous sieve when it was relaunched, it would take a few days for the planks to swell back up and become "watertight" again, all the while you have pumps to keep the boat from sinking... and if the planks were too close? Then you get cracking and pinching, very delicate process, and you hope the pumps don't fail overnight and you walk out in the morning to a sunken boat (which I saw happen 3 times in the 4 short years I worked there, not all our boatyard!) then ofcourse replacing rotted members is a project in itself, and my favorite /s part of it all was the brightwork. Some boats took 7, 8, 9 or more layers going between oil/sand/polish with ever finer grits, etc. to give it that shine. Still, many people preferred it not only for its looks, but allegedly they sail unlike any other, with even the wooden fir masts apparently being better than a metal pole. Some of those qualities of the wood probably carry over to planes.. there's a reason they chose wood in 1960, which by that point metal was heavily used in aviation.
Still, I'll take an FG sailboat any day over wooden. And I'll take an FG / composite / wooden plane over aluminum too when it comes to planes. Metal fatigues, corrodes, has electrolysis issues, etc., you don't get that with wood and FG / composite. Fine, people will tell you "yeah but it cracks slowly and you can catch it, while composite just blows apart" .. but how many (non homebuilt, non stunt) composite GA planes have broken up in flight? Have any Grummans had an inflight breakup? I am almost positive out of >7,000 Cirri there have been no inflight breakups (and this is I'm sure after some people got in some pretty stupid situations with them). The same can't be said for the metal planes, where, often the fatigue cracking is not caught, or not remedied appropriately.. but that's a whole different topic lol. Wood and composite can take a remarkable amount of abuse