Need has nothing to do with it. If you get your hands on a 640-1 I bet you will decide you need it. For CC it is good and it is one pretty gun.
Most of the guns I have bought were for CC. I have sold maybe a dozen guns I thought I needed for CC and now I have about the same amount of guns that I don't need but thought I had to have. Uh yep it is an addiction. Nothing like getting another gun I don't need.