Yes, $140,000 is enough money to live comfortably. However you will actually be living off less than half of that when you factor in taxes, medical malpractice, and loan repayment:
140,000-39,200=$100,800 after federal income tax
(28%)
-5,000 =$95,000(after medical malpractice insurance)
=$7,983/month
-2,887 =$5,096/month after loans (
$250,000 debt at 6.8%)
Gross Salary =
$61,152
I'll leave it up to the individual to decide if $61,150 is good enough to pay for home, car, and children.
That works out to about 5k/month. That's not spectacular. My family is currently living on my wife's salary of ~50k/yr while I'm in med school, and while we get by, we aren't exactly living it up.
We have to budget carefully. Kids can be quite costly. Between the dance lessons, the piano lessons, the afterschool care, meals, field trips, etc...it eats up a good chunk of change. Plus they don't understand things like closing the fridge or keeping windows closed to keep the A/C in...lol.
That 5k/mo has to go much farther than just house, car, kids. It's more like:
House, Homeowner's insurance, property taxes, Home repairs, homeowner's associaton fees, 2 cars, Car insurance, car repairs, kid(s), cell phones, cable TV, internet, family recreation (movies, vacations, whatever), occasional furniture (we're in dire need of new couches soon), disability insurance, life insurance for everyone, college savings for the kid(s), family birthday presents, christmas presents, utilites (gas, electric, water, trash), gas for the car, groceries for 3-4+ people, eating out occasionally, clothes for 3-4 people, haircuts for 3-4 people, kids' recreation (sports, art, whatever)...and on and on...
It doesn't go nearly as far as you think. Obviously you have to budget this stuff, but 60k/yr is not exactly great.
It's also frustrating that I could have been making 80k/yr at my old management job without going through all the hell of med school...of course, I wouldn't like my job as much, but...
Do we live comfortably? I guess...ish...right now. When we have to buy a new mattress or couch though, then we'll start having problems. So far we've been fortunate enough to get other peoples' hand me downs, but at some point you have to grow up and get your own furniture (for example).