What were your biggest purchase mistakes?

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Originally Posted by Bblinks

Serious note. 3 x 400 w is way too much for a 210, 250 is plenty enough.
Bigger is not always better.

Ya I bought 3 X 400w on a good deal, they were nice but im not sure how I convinced myself my power bill wouldnt go through the roof. There currently stored in the basement away from any plugin. Just to be safe.