Some positive aspects to writing articles and selling them on the internet is that you get to supplement your monthly income. In this rough economy who can't use a few extra bucks? Another upside is that you can build up your cache of original content and increase your reputation for writing and possibly attract some higher paying customers. Lastly, just think of the knowledge you are gaining by having to research some of the topics you write about. You are, or will soon be, a fountain of useless information.
But it is the most important that the spun text, especially with version 2.0 usually passes CS test, and Google cannot even see it as spun content. Such as content can be used for links building as well as on money sites and qualitity is pretty good, as you saw in the example. It is much better than other article spinners with similar pricing as they do not get the right meaning of each and every word, so the rewrites sometimes looks funny/strange. It is of course much better than any free article spinner/rewriter I have tried.