Hmm. I have a house, 2 car payments, a wife and a baby on the way. So maybe a touch different situation than most here.
When my wife was working full time, we were pulling 90k. We've been around 75k the past 2 years. With the extra girl to spoil on the way, I'd hope we're cresting 150k together by 40.
She's an RN and I'm a mechanical engineer. I've been out of school 5 years.
If I were single, I'd be cool with 55k.