I'm one of those that are making only a couple hundred per month (that's profit) that have relatively high monthly expenses. I haven't been there from the beginning but I'm sure it has changed a lot since then, especially with the custom content generation. I'm at around $400 in profit for the month so far. I've yet to "hit it big" like many others have done in less time, but I'm not gonna give up so soon as each month has produced slightly better profits than the previous month.
Here's an example of monthly expenses:
The "+" version of the program = $105, Server = $180 (you could start out with a cheap server for $30),
SEO program = $60-100 (optional, but helps build links which are important), and up to $100 remaining for domains.