Mastercard World Elite is a nice option if you are a frequent traveler. In addition to your card's benefits Mastercard offers such nice things as price protection, concierge services, a car rental program and many others.The good thing is that you don't have to pay for them - that's just the courtesy of mastercard granting you these features.
If you are looking for the TSA PreCheck feature, you may consider the Citi® / AAdvantage® Executive World Elite™ Mastercard® credit card. This card offers you 2 AAdvantage® miles for every $1 spent on eligible American Airlines purchases, 1 AAdvantage® mile for every $1 spent on other purchases and a bonus of 50,000 American Airlines AAdvantage® bonus miles after spending $5,000 in purchases within the first 3 months of account opening. You receive different travel perks using this card like the complimentary Admirals Club® lounge access and free first checked bag on domestic American Airlines itineraries. The card comes with $450 annual fee.