Personally, I'm in my sporting "middle age." With over 35 (uninterrupted) years of fin-riding, windfoiling has given me new and exciting stimuli. At a certain point, since I don't have the opportunity to do more than 50-60 sessions a year, and in order to improve and master my technique, I had to relegate fast-fin windsurfing to special days.
As for me, I believe that wingfoiling (and its derivatives) is the "ultimate weapon" for countless reasons. If I were 20 or 30 years younger, I wouldn't have had any doubts...
...but after having invested so much energy in "fast" windfoiling and imagining that I'll have to spend at least another three years to gain even a modicum of enjoyment, I prefer to continue "being different."