I think that once we remove the politics from open vs. closed source software and consider which option is offering the most appropriate value for what we need, the choice is clear.
If you have specific requirements that dictate that using the open source alternative simply isn't practical, then clearly buying the proprietary application is the way to go. But this mindset of "make it easy because I'm lazy" is utter nonsense.
I liked the end conclusion the best, its a short read, wasn't new worthy and since we don't have a "open source" section, linux is close enough for me
the article overall doesn't offer much of real terms, just some of the author's observations when using the different open source alternatives to the closed source brethen.