Is the Marriott Bonvoy Brilliant Amex worth the $650 annual fee?

When a credit card's annual fee runs into the hundreds of dollars, many people raise an eyebrow and question whether its benefits justify that fee.That's certainly the case with the Marriott Bonvoy Brilliant® American Express® Card — the most premium card in the Marriott credit card family. This card has a set of impressive benefits, but also charges a $650 annual fee (see rates and fees).The truth is, cobranded hotel cards usually aren't the best for maximizing your spending beyond purchases with a given hotel chain. But when a credit card offers a free night award each year and elite status that can provide suite upgrades and complimentary breakfast, that can easily justify the annual fee for some travelers.The Hilton Honors American Express Aspire Card proves that it's possible to get significant value from at least one premium hotel card. Let's break down whether the same holds true for the Marriott Bonvoy Brilliant.Welcome bonusLet's start with the welcome offer to see if the card is worth it.New Marriott Bonvoy Brilliant Amex cardmembers can earn 150,000 bonus points and a $250 statement credit after spending $6,000 on purchases in the first six months of card membership. Off...