They are plastic and there are many. Stop making them today and only make parts and the class will keep going for a few more decades. More than enough time for those racing them for the nostalgia to not be racing them anymore.
Rather see the end of the SF with a boat like the Rocket taking its place. DHC has already proven that that nearly the same form factor can have all of the improvements desired.
Someone trying to get a cut on the Rocket's success? Seems very late to the game and how many Rocket's are out there? The delivery schedule is backed up by 6+/- months so there might be an opportunity there. Rather see the Rocket become a popular OD than see a Rocket rip-off split sales and...