But I do think it's possible to make half the salary in Seattle and still not spend 40+% of your income on housing. But I haven't rented in a while and I've heard it's getting harder.
The thing is that if you know how to live frugally, being in an expensive town for a while can work in your favor, as long as you promise yourself you'll take the money and run. If you meet Mr or Ms Right before you get out though you may well be in trouble.