Taking years to get to $2,000/mo revenue as some of the commenters say? That is truly sad. Somebody seriously needs to teach these guys some business skills.
Hopefully it will be me.
I wrote a positive comment - I've made gobs of money and my SaaS made $1300 its very first month, after the first round of trials ended. And the reason is because I created a truly different product in a category proven to make money, and used my blog/twitter audience to spread the word as I was launching (and before).
It's really, really, really not that hard.