If you reserve through CRO, prepare to pay an arm and BOTH legs. A GV at BWV is about $1500 - $2000 a night, depending on season. OKW and SSR are $1100 - $1545.
For about the same money, you could get the Admiral's or Vice Admiral's Suite at the YC - which, I believe, includes Concierge.
Renting points may not be "cheap", but it wouldn't run as much as through CRO.
DisFlan