You do what? No, seriously. I think there's something wrong with that attitude. I'm not arguing the usefulness of evaluation of software to be used in production - by no means.
It's not always a bad approach to make. An environment with a large number of known bugs (which you can work around) can be better that an environment with unknown bugs - even if there are less of them.
The cost of staying with a known system can be larger than the cost of migrating and discovering all those new bugs.
Of course the cost of standing still increases with time as the rest of the world moves on.
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