When everyone and their buddy is signing up to spew cash into the coffers of services like Amazon, Heroku, and other hosted solutions (instead of doing it themselves), those services can spread and grow.
What happens, though, when that easy cash is no longer available? What happens when, for example, paying a lot for Docker or NPM no longer makes sense?
The outflux of customers has the--in some sense--real possibility of killing those businesses for the remaining users. Look at Github, for example, as a company trying to run ahead of the curve--it can happen.
I'm more concerned with what happens to ecosystems, like Node, that have VC-fueled companies as critical components.
I'd love to hear other opinions on this point of view.