Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
I mentioned to a friend of mine the other day how I was replacing Word with OpenOffice in the long run. He replied that they use OO exclusively at his place of work (mostly as a security measure, as it turns out). That provoked a question from another, skeptical friend: How do you know this is really going to help?
By "this", he meant my own incremental adoption of OO. And questions like this deserve a good answer, because they are likely to be asked again and again by people who aren't advocates for or against anything -- just people trying to get a job done. They have good reason to be skeptical if they feel they're being asked to trade the devil they know (Microsoft (NSDQ: MSFT)) with the devil they don't know (OpenOffice / Sun / open source in general).
The argument obviously isn't limited to Microsoft/OO, but can be applied to any situation where you're trying to ditch something proprietary.