Not just because it earns valuable Ultimate Rewards points, but due to the fantastic (and for a lot of cardholders, yet undiscovered) perks
like Primary Rental Insurance and Trip Cancellation / Interruption Insurance included as benefits for cardholders.
While this can be positive, I personally think Citi is missing the boat here in that for a premium credit card,
primary rental insurance in the US should be standard.
However, you might want to go with the Ink if you think you can get more from the 5X categories and don't mind losing out a bit on
the primary rental insurance for non-business travel.