Wow.. you can finally plug in a USB drive/card reader/camera/whatever... That alone actually takes the iPad a long way towards actually being real/Pro/whatever. I sold my first Gen iPad Pro over this stuff. It was just to painful to do a lot of real world stuff that involved files. Maybe today the experience would be a heck of a lot better.
Had my iPad supported USB devices, there's a good chance I wouldn't have used it at all.