Well...WSJ finally responded, and we now have ferry reservations. Two tidbits may be of interest:
1. The fee for the ferry is now $120pp for adults.
2. Owners receive a $10 discount. (I'm not sure whether this is for WSJ owners only, or if other Westin owners are also eligible. It may pay to ask.)
Before I get chastised for not renting a car on St Thomas...we won't be needing a vehicle for our full 13-day stay at WSJ. That tilts the economics in favor of taking the ferry and renting on St John.
The discount is meant for WSJ Owners, but can't hurt to ask.
It is not about chastising - I have certainly taken the WSJ as well as the public passenger ferry (and rented both on STT and STJ). It is more about knowing that the option of renting on STT and taking the car barge over as not being as complicated as it may seem. The Westin ferry has gotten quite expensive - when we first took it (~5 years ago) it was $65pp - much more reasonable. Now with 4 adults - it is about the same as a week rental and not having to hassle with the taxi-buses or the per person cost (and certainly cannot be defined as a 'cab'). If your intent is to stay on resort for the most part - then a long-term rental is certainly not worth it. Our last 2 trips (14 days) - we barely made it down to the main resort and spend most time at the numerous beautiful beaches - but that is us - everyone has their own vacation expectations.
Whatever you rent - make sure the vehicle has good brakes and tires, and functioning AC. Also - take good notes (photos) of the vehicle before renting - and make sure it is clean of sand upon returning. If renting from O'Connor at the resort - try not to mind the people behind the counter - they are infamous for poor service skills - it is just the way it is.
Enjoy