"I'd rather sleep through the sunset and get up at reasonable hour to go my cubicle and be home 8 hours later with my wife."

Whatever works for you. Glad it's working out. Not everyone could stand working in a cubicle at any cost. Some pilots live in their base, bid reserve, and might do 7 overnights a month. That's one way to be home a lot as an airline pilot.

"Seriously, is flying that much fun after you have been doing it for a while?"

I think so. It loses some lustre, no doubt, over the years. But my worst day flying is better than my best day as a plumber or cubicle worker. To each his own...

"Is flying with some stranger sitting right next to you that much more satisfying than..."

Sounds like you didn't enjoy your work enviornment much. It was best you found something else.