I have an example - I'm an average software engineer in the midwest making $170K/year in a great field, and I've been offered a position in Dubai, in an outdated industry, making somewhat less salary, but 0% taxes and a housing and travel allowance.
Here is the thing - I love my current job, love the field, love the local weather, culture, apartment. I really don't want to move, don't really like the new field, really don't like living in Dubai (lived there for six months) - but, Net of Travel/Allowance/Salary/Housing/Taxes, I'll be making $50K more in pocket
At a certain point, money can buy your unhappiness. I guess we'll see if $50K is enough to do that for me.