and OP was saying that he'd like to work for 10 years and retire. it's not really retirement if you only stop working for 10 years.
I just mean that you need far higher incomes than 350K for 10 years (gross) to be able to stop working entirely
In my part of the US, you can live like a king on $200k/yr and such jobs aren't rare. You can live better than 90% of the people here on $100k, and putting 100k/yr away for retirement is genuinely more than enough unless you're in your 40s or so.
But I know there are other parts of the US where what you say is 100% true.