We have eaten at Sushi On 5 A few times over the years.
I do recall many years ago, I think it was about 5 years ago there was a set price for Sushi On 5, I want to say it was $45, and it was basically all you can eat.
I did not make the reservation or pay for it, a friend, we had a fantastic meal.
Also, the fresh wasabi is really different than the prepared wasabi which I prefer.