$200k is about the threshold needed to qualify for a mortgage in the area he's living for a comfortable, but not luxurious single-family home. That's also a go

$200k is about the threshold needed to qualify for a mortgage in the area he's living for a comfortable, but not luxurious single-family home. That's also a good baseline for a standard-of-living where all necessities are met, without worrying about them, and where there isn't financial stress. However, it's not enough to get rich. It's also a point where I don't feel like I'm making a significantly greater sacrifice than Khan would if he paid out of his own pocket (in other words, a signal that I care more about the organization than he does). $100k would be okay in the midwest or rural America.