It is, unless you are looking for a job. Unfortunately proficiency in Gimp, Inkscape and Scribus isn't going to fly with a potential employer, unless of course that proficiency translates to Photoshop, Illustrator and Indesign because that is what they expect you to know.Mesmer wrote:
oh and consider the whole "Industry Standard" sales pitch: rubbish.
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It's a shame, but it is true.
I did read an article a while back about a university professor who was teaching his kids on all open source software, as a way of making a statement and showing that Adobe isn't the only answer for effective design tools. I'm not up to speed on all of the others, but if you look at some Inkscape and/or Blender projects it is easy to see that they are definitely effective tools capable of creating killer work when in the hands of a capable user.