The Southwest Rapid Rewards Premier Business Credit Card charges a $99 annual fee. But it also comes with a 6,000-point anniversary bonus. Per Insider's valuations, this bonus is worth $84. If you think the card's remaining benefits (two EarlyBird check-ins, 25% back on inflight drinks and Wi-Fi, return rates on spending, etc.) are worth more than $15 per year, the card is worth it.