Safety – a dull knife can just as easily bounce off your cutting surface and into your thumb. A properly sharpened knife will go through foods and materials of any kind without putting you at unnecessary risk.  

Efficiency – sharp knives quickly go through meat, vegetables, fruit, or other materials.  You’ll maintain much better control with a properly sharpened knife.  

Quality – properly sharpened knives allow you to do the fine precision work you had in mind.