I think if they were interested in doing a normal fast pass system, and still have a gold pass walk on day they could do something like this. Have the gold pass walk on day 1 day a week, and then charge for either a q-bot system or other walk up system of their choice, which would in my opinion bring in more money, while still catering to the gold pass holders, and those who don't have a gold pass that dont want to wait in line.