I don't collect knives. I only use them. If they sit too long in the box, I sell them.
That being said, my dream knife is a functional piece, and it has a name: the Benchmade 705 in plain edge. Has everything I like in a knife--a utilitarian 3" blade, G-10 scales, good steel (ATS-34), and Axis lock.
Now I just have to save up the cash and get one.