>I honestly do not mean any offence, just out of curiosity.
>If you guys care about money and time why would you spend the best years of 
>your life basically copying commercial products for free?

1) For the same reasons commercial vendors build competing products: different 
tools in the same category fit different scenarios

2) The right-tool-for-the-job concept: Sometimes a commercial solution is the 
right choice, sometime an open-source solution is. Budgets, applicability, and 
local expertise all should factor into platform selection decision.

3) Because sometimes the output of a platform is more important than the 
platform itself: If your role is to work with data, not to produce software, it 
can in the end be more efficient in the end to have a platform you can modify 
as needed.

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