Thanks to @cbfb I booked this also for the $820 price.  I called my TA and asked him to hold 4 more cabins so I could get some other couples to sign up.  I kept checking the price because I knew it had to be an error and by 10:00AM CST it was no longer available.  My TA said he wasn't able to book anything at that price and it's now $2,823 with AI and refundable deposit!  I made sure I took screenshots of everything as I made the reservation and I have a confirmation from Celebrity with the All