Those GlassDoor salaries are cash. Stock and bonus add another 50-100%. My anecdotal experience with Vancouver is that some employers will throw you 15%, on a good year.

Microsoft pays a bit less, but also employs ~30,000 people in the area.

50-100% sounds high for stock and bonus when you're on 200k+ but my main point was these companies are the exception, not the rule.

The stock and bonus are included in the 200-400k number.

Microsoft and Amazon are hardly an exception in Seattle - now that Boeing is leaving, they are by far the biggest employers in the region.

Yes, Amazon and Microsoft HQ are both in the Seattle area. Google has 2 locations here in Fremont and Kirkland. $200K+ for senior engineers sounds about right from people I've known who went to those companies.

Housing is getting expensive, but you can still buy a small 3br for about $400K in my neighborhood just south of Bellevue, so saving $100K does sound plausible.

"All-in" means total compensation (stock and bonus included), not just salary.