I also see that Celebrity is having a weekend sale. Maybe this site posted to sale prices early and then were going to hold the reservations until the sale date.
Whatever you do, make sure your CC payments go directly to the cruise line not the TA.
All I ask is a tall ship and a star to steer her by; John Masefield
Carnival: Glory 2004, Destiny 2008, Splendor 2009, Freedom 2011, Valor 2012, Dream 2013
Celebrity: Summit 2011
Princess: Ruby 2010, 2014, Caribbean 2013, Coral 2014, Regal 2014, 2016, Royal 2017
Star Clippers: Royal Clipper 2015