I tell you to GM a campaign well requires for me to run it every-other week and on the off week I need to spend a good 8-12 hours setting up for the next game(Prep work). I always have plots within plots within plots and try to plan ot many different lines of game play that the player could go in if they so choose too. I have tons of data set up for lots of the systems that the campaign has played through over the 20 years run that never ever even got touched, but if ever they go back I have tons to work with as well.
Now for me the Verge sector after 20 years is played out, so I am redoing my own gaming universe for my next campaign For me half the fun is creating the stuff for the campaign, the the rest is GMing for my players and seeing the fun they are having on their faces. There is nothing greater than sitting back from the table as the GM, and see ones players roleplaying and trying to work out something. I love just sitting there and watching it all, especially as the GM and I don't even have to talk at times!!!
Also there is nothing better than face to face table top RPGing, with glass covered checkered gaming table to play on. using those grease pencils to draw what-ever, and using painted (in my case mostly Lead figures) or what-ever on the table top. All the tons of dice and so on, with mood music playing, and using many paper drawings, chalk-board, hand-ots, and etc as props can't be beaten. Keeping a gaming group of 5-6 players plus myself the GM happily gaming for 4-6 hours at a time is awesome. Oh at 46 years old married with two kids, I can NO Longer go/spend like 12+ hours gaming like I did years ago (before kids, wife, household matters, and etc)...ah the good old days!!!
Enjoy these times you all have, because they will never come again! Be thankful for what you do have and try to do the best one can at it. Everything comes with time and to have fun for all is the main goal here.
Penn