Most fast passenger ferry systems I've been on around the world range from $36-$45 one way. from 45mins to 1hr long and are of the twin hull design (catamaran). For return its usually $70-$85. These are ferry services that run frequent daily schedules. These prices would be on par with what our fast ferries were charging. Since downtown to downtown is not part of the highway transportation system, it would be highly unlikely any provincial subsidy would occur, much like harbour air isn't part of any necessary route.
The fact that two or three startups have tried and failed, it goes to show the market hasn't been there. Personally the cost-benefit of either taking the BC ferries at 2hrs to downtown OR 20mins by harbour air at $85, I don't really need a third option, as most of the time it would just be HA or BCF. Sitting on a fast ferry for 45 mins is neither here nor there for me. I'd rather pay more to be there faster, or pay less and be there later. I don't know if it makes sense.
Doing bad things to bad people, since 1998 http://www.badassdadgearreview.com