this thread reminded me of my first computer, an Apple //e that I hauled back and forth to college in the early '80's. It was lighter than some of those Dell 17" laptops now. I think it fit under the seat in front of me. Seat pitch was more forgiving then, and no one had to bring rollerboards. I bought a special bag so I could do carry-on. I had to check the monitor though (lovely green screen).

Fedex the computers!