I wonder if this is a new policy. I got a fantastic price reduction on my solo trip in May and still got all the 4 star benefits. I got the fare adjusted to in a 7-for-7 shortly before the 90 day cut-off for the Price Assurance Policy. My price for solo on the 23-day Cruise Collector was less than the per person double occupancy price after the sale ended for the 10-day segment of the Cruise Collector (the other segment was a 13-day ocean crossing which had a lower price than the 10-day segment). I wondered for a while shortly after I got the price reduction if Windstar would come back and say they had made a pricing mistake.