Reward Mile Queries

Just a query about Caribbean reward mile amounts. They seem to be 100,000 for a return flight whilst West Coast US is only 80,000. Given that the UC service to the Caribbean is of the B&S variety AND that UC flights are cheaper to the Caribbean that the West Coast would anybody like to speculate on reasons for this? Obvious ones include
More availability in Caribbean UC so increased likelihood of dates being available.
Most people earning reward miles do it on Business flights and are unlikely to want to spend more time in "business locations" so a premium can be charged for non business locations.
errmmmm... over to you
More availability in Caribbean UC so increased likelihood of dates being available.
Most people earning reward miles do it on Business flights and are unlikely to want to spend more time in "business locations" so a premium can be charged for non business locations.
errmmmm... over to you
