Point nobody has made is cost.
MarkH rigged an 11 metre;most likely on a 520 100% carbon mast and perhaps a 260 (??) carbon boom.Put them on a wideboard with a 70cm fin ??? Might be wrong but there`s no way on earth your average recreational sailor will spend that type of money for the particlular day that kit works on unless he`s already into racing (or plans to be?) Value of all that kit?? 3 or 4 thousand ????
Just avoid putting masses of FW, did not pay fortunes for it. I only get new slalom or speed kit, but my 2nd hand formula kit was cheap.
2nd hand F161 £500 2-years ago.
2nd hand (but nearly new) North 550 mast £150 4-years ago.
2nd hand North Warp 11m £150 4-years ago.
2nd hand HPL 240-310 carbon boom £250 5-years ago
Total £1050 (less than the cost of 1 x new board)
The mast and boom will (hopefully) not break and last some time. And I change my Formula board and sail every 3-years for a newer 2nd hand model. I have not included the cost of fin's as I am a bit of a "fin bitch" and have loads collected over the years
P.S. I think you might be right though, less new FW kit is being sold. Not a bad thing as this drives 2nd hand prices up