Here is my take.
I love flying professionally. If I have to work, then I want to do this. It affords me to fulfill a passion for flying, meet many interesting people, and travel... even if it just means to the state next door or within the United States. I love those times when you are cleared for a challenging visual approach and swing it around only to grease it on. A great crew with a long overnight in an interesting city can't be beat. All in all, I am very, very happy with my chosen profession.
That said, there are many, many times that I wish I could fly where I want, when I want, in what I want. It would be nice to fly without a schedule, to go somewhere and sit for a while enjoying a good view and some good food, only to fly home and be in my own bed. Sometimes the trials and tribulations of the airline industry can really test you... not to mention cause near ulcers. It is a rough business that many cannot handle, with crazy schedules, many hours away from home, eating airport food or in restaurants all the time (home cooked meals are great!), airport security, all the rules, etc..
Problem is, to be able to afford the flying I described above, I would need to find a profession that would give me the financial ability to do it. Right now, there is only one or two other jobs that I would be somewhat happy with, and they are all in law enforcement. Not really big moneymaker positions. So it is a tradeoff... I choose following my passion and making it my profession, even with all the stress that comes along with it. It is nice to get paid to fly airplanes. Those who say that you don't fly in the airlines are lying. I have the freedom to click off that autopilot whenever I want. The airplane has ailerons, rudder, and an elevator like the rest. It is just bigger with more fancy gizmos.
Also, consider this: What better way to spend your time at work than to fly, only to leave all your free time for your wife, children, and other interests? I try to leave work at work, that gives me the chance to do other things that interest me in life. You need a balance.
Good luck with whatever you choose meritflyer!