Ask HN: What can a startup expect to spend on hosting?

Hey, I'm curious about what kind of money a "healthy" startup can expect to spend on hosting in the first year(s).

I say healthy because I am not assuming full on hockey-stick growth, but enough that you are clearly on to something.

I'm planning to use AWS, but I am open to other suggestions and would love to hear some comparisons with other services.

Thanks!