1.   Cruise lines began discounting their high-priced millennium cruises.

2.   Cruise ships also managed to fill their millennium cruises only by scaling back their inflated prices.

3.   Millennium cruises on two of the most popular riverboats, the Delta Queen and the Mississippi Queen, are already sold out.

4.   Since many passengers who normally book the holiday cruise are booking millennium cruises, space is available on the Crystal Harmony South America holiday cruise.

5.   Some cruise lines did not wait that long to jump-start occupancy on their millennium cruises.

6.   Space is still available on millennium cruises, according to the Cruise Lines International Association, which represents most lines.

7.   Yet some longer millennium cruises have already filled.

8.   Cabins remain open for millennium ocean cruises.