When a client gives you documents on a thumb drive when they meet you at the airport 30 mins before your flight, and you sit on the flight for 6 hours with your

When a client gives you documents on a thumb drive when they meet you at the airport 30 mins before your flight, and you sit on the flight for 6 hours with your useless laptop that can't read the contents of the drive, then maybe you'll understand why having the most popular connector currently in existence on your new laptop might be useful. Just like I don't want a Leatherman® with just a knife blade on it, even if it is slightly larger I want my laptop to have all of the connectors I'm likely to run into over the next N years so that I don't need to carry a separate bag just for the dongles.