the uppers in my company aren't that clueless about f/oss, but they still don't use it. they generally just don't trust that non-microsoft products will do what they want, and integrate sufficiently with the excessive microsoft investment we already have.
unfortunately i dont really have any power about such decisions, but i recommend you show them some demonstrations of gimp and grass. when they see it in action, they might be more convinced. and if they are still concerned, charge them a few grand to install it
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