I absolutely prefer to have a larger external screen, too. But if I'm traveling, and the choice is between my 13 inch Macbook Pro, or the 12.9 inch iPad Pro, I usually choose the iPad. With Blink in full screen, it's basically the same as iTerm on the Macbook, but much more portable (and I can do things on the iPad I can't do on the Laptop: Apple Pencil & Goodnotes)