I'm good with that.
On the very rare occasion that I actually grill a ribeye, it goes to well. It's the only way to render the fat. I've not tried sous vide. Maybe that would help?
Not a fan of sous vide on ribeye. I prefer a high heat grill.
Granted I find that a high heat grill will soften the fat on a ribeye but not entirely render it out--but I like that because ribeyes have soft fat to begin with, and I'm not afraid of a little fat.
But I don't really find that sous vide makes any appreciable difference to the fat in a ribeye. I suppose you could hold it at med-rare temp for many hours, but I think you'd screw up the texture of the meat trying to do it that way.
The only actual steak I like to use sous vide for is filet. It's already lean so rendering fat isn't necessary, and if you want a very nice edge-to-edge med-rare it's really easy to do. But I don't really like filet much, because of course it's so lean. It's not particularly flavorful. IMHO the allure of filet is tenderness, not flavor.
I have tried sous vide for tri tip, which can be really interesting because tri tip is naturally tough and a longer (12 hour) sous vide bath can actually turn it pretty darn tender, but I usually just grill it because when sliced properly against the grain, it doesn't really eat tough, much like flank steak.