Spend $5,000 a night to stay on this new ship By: CNBC.com News January 18, 2015 at 11:00 AM EST Regent Seven Seas cruise line unveiled what it boasts will be "the most luxurious ship" ever built. And the price of admission won't be cheap. Read More >> Related Stocks: Carnival Corp Royal Caribbean Cruises Ltd Sentinelone Inc Cl A