The only time you can get a price like that on a RCL ship, is on the Tuesday specials a week before sailing. I know nothing about cruise.com, I use a travel agent for all my booking about year in advance, so I can get the stateroom I want.
Cruises generally charge a $100 a night for inside rooms per person.
>>>>" B-A-I-T & switch" <<<
Never....never buy BAIT from a cruise line. Go to a place like I go to: "Bubba's Lingerie and Live Bait Boutique".