I actually have a Cat with 440C that has jimping top and bottom. It is a really nice knife for a liner lock. I bought it because I wanted a Spyderco quality travel knife. It excels in that regard.
440C done right is good steel. There was a time when it was the super steel. It is certainly better than AUS8 and maybe AUS10. Buck was made famous because of its use of 440C that would hold a tough edge for a long time. They did 440C right and so does Spyderco.
Now, the knife comes in BD1 and that is pretty good all around steel, too. Though the knife no longer has jimping, you do get steel liners and G10 scales in a compact knife. I say buy one.
If you want a smaller and lighter knife then get a Dragonfly, but for the money, the Cat can't be beat.
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