Great position paper! I think the comp skis are amazing, but honestly i think a lot of it is cost and versatility. A crossover ski for freeskiing often has lace up bindings so that it will fit a range of riders in the boat, and is often a forgiving ski that will ride flat and cruise nice, but can also rip a turn and accelerate across the wakes nice. So I can rip it up on the open water on a ski that still performs very well, but a buddy can take that ski and learn on a stable platform that isn't a combo ski.
This is a tangent, but @bsmith why is it you think that recreational skiing died off so hard? It was so popular in the 80s. Is it Cost? Wakeboarding? Time? Or just a new generation with different interests?
I'm 30, I grew up skiing with my family, and I've spent that last 15 years trying to convince my friends to learn to slalom and none of them want to, scared of failure perhaps; maybe it doesn't look as cool as wakeboarding, or more likely they just don't feel like falling 15x before they figure it out. I mean I love to wakeboard too, but have some diversity.
Perhaps I should get a boom to teach my friends and all the kids, try to ease the learning curve.
Also we have no courses up where I live, maybe I should invest in one and get people hooked.
Anyone else live in a place with amazing lake access and yet no skiers? How do we get ppl to want to learn to ski?