Since i have family here on earth, i wouldn't take the trip basicly because i would never get to see them again. But in chase of they all died (very unlikely but still), then i would have no problem with living on Mars. For the love of god, you get to share your daily life with 199.999 other people..
My only concern is how/what currencies system they are gonna use and what they are gonna do in chase of a baby boom suddenly happening.