This really should be called "How not to run an application", it has very little to do with node.js or saving money even.

It does raise the question of why Node doesn't even have 1995-style prefork process pooling (maybe it does on Unix but doesn't on Windows; I'm not sure).

The well known and standard cluster module (see http://nodejs.org/api/cluster.html) does exactly that; I wish the author had examined its performance in the article, because I am sure his native Windows solution would be faster, though I'm not sure how much.

That may be a Windows issue, it does seem to support a variety of concurrency systems :)