well I just booked a cruise for next year USING POINTS. the prices I were quoted for the cruise were not enough of a savings to deal with the hassle of renting the points, getting the cash and then paying for the cruise.
it was much easier to make one call book 5 nights at WDW before the cruise, one night after and then the cruise. One call all done!
But that was just our personal preference. If it had been a bigger savings, it would have been worth it.
6 nights at WDW and a 3 night cruise for 207 points. still have 6 left over for next use year.
YMMV (Your Milage May Vary)
Mike