My EDC $1 folder has a half-serrated blade. It is primarily a work knife for me and the serrations perform well on cardboard, duct tape, etc. I sharpen it daily (its a $1 knife after all) and it does yeoman's work for me.
My EDC SAK has no serrations and cuts electrical cords like butter.
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People don't like to be meddled with.
~River Tam