This year I have had 1 session on twin tip, 4 sessions on surfboard (last one in early July) and 20-some on foils, after trying for the first time in spring.
I have missed perhaps 4 sessions where riding a normal surfboard would have been really fun, and an equal number for which twin tip would be ok, to build some foiling skills.
If I were back in Portugal, where I traveled lat year, or spent more time in OBX, it would be very different.
But I sail mainly in Virginia, where 15 knots is a good day, and 20 is not common.
Foiling has added a lot of fun and extra days, important when you have to drive a distance for every session.
But foil only? I hope never.
Kiting, in the first place, has always been about adding more, not reducing or replacing something....
Give me more wind and a good slick or some waves and I will be happy to leave the foil at home.
Or waiting on the beach, in case the wind drops a little...