I have a Spyderco C07PS Police that's brand new. Probably the second time taken out of the box for the pictures attached. I'm hesitant to use this as I don't want to ruin the finish. So my question is, is this a good knife? Is this a desirable knife? Is this something I could possibly trade up (plus cash) to something like Zero Tolerance or Benchmade? Guidance and info would be greatly appreciated!