While I chose sleeping, sleeping is not what I would choose if I had a real choice.
I am a contract trainer. I teach people how to install, configure, and secure computer networking equipment (routers, switches, firewalls, IDS).
This year I expect to travel around 26 - 36 weeks.
So I fly a lot. I would love to be able to use my laptop to do research, class prep, pleasure reading, and play games. But unless you are in first class or have an aisle seat it is a hassell to crawl over people to get you stuff out of the overhead bins and crawl back to your seat. The airline I use don't have power outlets in the seats so you only get 2 hours max before you have to do the crawl thing again.
Now that I've flown with a particular carrier enough to be upgraded to first class many times, it's not as bad as coach but still no power only battery.
As far as the additional noise, well with the background roar of the engines and babies crying I've long ago purchased Bose noise cancelling headphones. By the way they are great.
Frankly, if the airlines get the go ahead for Internet and cell phone access during flights, I say the airlines should build in computers maybe into the trays that are on the backs of the seat in front of you while the headrests contains the monitors.
How hard would it be to have a server on board to supply hundreds of 2D games like Mario Bros. chess, backgammon, or word puzzles and so forth. Most airlines already have in-flight movies. Use the same headsets for the computers. Instead of charging $5 for the headsets to listen to the movies charge $7 and also give access to the computers as well. PCs to surf the Internet or play these games would not have to be so beefy.
While I do travel a lot and enjoy the places I go to.
With these kind of changes, the getting there could also be fun as well.