SeaDream is luxury, but in a more relaxed, less formal atmosphere. Most probably a younger passenger mix than Seabourne.
Seabourne will be more formal to country club casual. As such, probably more luxurious to some. Probably an older crowd but certainly not limited to that.
Radiance of the Seas - Nov 2006
Legend of the Seas - Jun 2007
Costa Fortuna - Mar 2008
Legend of the Seas - Oct 2008
Celebrity Constellation - July 2009
MSC Orchestra - Jan 2009
Navigator of the Seas - March 2009
MSC Poesia - November 2009
Jewel of the Seas - June 2010