What kind/amount of blood have you had to shed to get that level of comps? It's been a while since I ventured into the Westgate other than to make a Thursday -105 football bet. I remember that they had surprisingly decent VP, in the sports book area of the casino, but I haven't checked it out recently.
Benihana's, to me, has always been more about the flying knives performance than the food, which I suppose is decent in comparison to more conventional Asian joints. I remember back in, oh, 1985?, my first date with a girl with whom I wound up in a long relationship, I took her to Benihana in SF when she told me she had worked in a Japanese restaurant and really liked the food. She actually laughed when she found out we were going there, as she said that their food was very "Americanized" and not at all authentic Japanese. Still, we had a good time, and we attended a concert at the San Francisco Symphony afterward.
Casinos should let you use comps to cover tips. Frequently, you have "leftovers" on your comp balance, and that would be a good way to use them. But I suppose that since all comps are basically sold at wholesale, not retail (a $100 food comp actually costs the casino around $50), exchanging them dollar for dollar with staff would cause them existential agony.