Since cost of living and rent varies widely by location, it'd be much nicer if I could set multiple expectations of salary. You'd have to pay me more for me to

Since cost of living and rent varies widely by location, it'd be much nicer if I could set multiple expectations of salary. You'd have to pay me more for me to be willing to move to SF, for example, but I know I can expect less if I'm working on the east coast, or say, Tokyo, where programmers aren't as 'hot'.